[PATCH 07/14] drm/msm/dp: move/inline ctrl register functions
Dmitry Baryshkov
dmitry.baryshkov at linaro.org
Fri Nov 8 00:21:38 UTC 2024
Move CTRL-related functions to dp_ctrl.c, inlining one line wrappers
during this process. The enable/disable functions have been split to the
enable/disable or enter/exit pairs. The IRQ and HPD related functions
are left in dp_catalog.c, pending later cleanup.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
---
drivers/gpu/drm/msm/dp/dp_catalog.c | 389 +------------------------------
drivers/gpu/drm/msm/dp/dp_catalog.h | 22 +-
drivers/gpu/drm/msm/dp/dp_ctrl.c | 447 ++++++++++++++++++++++++++++++++----
3 files changed, 409 insertions(+), 449 deletions(-)
diff --git a/drivers/gpu/drm/msm/dp/dp_catalog.c b/drivers/gpu/drm/msm/dp/dp_catalog.c
index bed2c26f883e92319721ed8bd672eb395cbf0544..7c65eba867733cf532831f54639f23aa5605c35a 100644
--- a/drivers/gpu/drm/msm/dp/dp_catalog.c
+++ b/drivers/gpu/drm/msm/dp/dp_catalog.c
@@ -18,8 +18,6 @@
#define POLLING_SLEEP_US 1000
#define POLLING_TIMEOUT_US 10000
-#define SCRAMBLER_RESET_COUNT_VALUE 0xFC
-
#define DP_INTERRUPT_STATUS_ACK_SHIFT 1
#define DP_INTERRUPT_STATUS_MASK_SHIFT 2
@@ -93,217 +91,6 @@ u32 msm_dp_catalog_aux_get_irq(struct msm_dp_catalog *msm_dp_catalog)
}
-/* controller related catalog functions */
-void msm_dp_catalog_ctrl_update_transfer_unit(struct msm_dp_catalog *msm_dp_catalog,
- u32 msm_dp_tu, u32 valid_boundary,
- u32 valid_boundary2)
-{
- msm_dp_write_link(msm_dp_catalog, REG_DP_VALID_BOUNDARY, valid_boundary);
- msm_dp_write_link(msm_dp_catalog, REG_DP_TU, msm_dp_tu);
- msm_dp_write_link(msm_dp_catalog, REG_DP_VALID_BOUNDARY_2, valid_boundary2);
-}
-
-void msm_dp_catalog_ctrl_state_ctrl(struct msm_dp_catalog *msm_dp_catalog, u32 state)
-{
- msm_dp_write_link(msm_dp_catalog, REG_DP_STATE_CTRL, state);
-}
-
-void msm_dp_catalog_ctrl_config_ctrl(struct msm_dp_catalog *msm_dp_catalog, u32 cfg)
-{
- struct msm_dp_catalog_private *catalog = container_of(msm_dp_catalog,
- struct msm_dp_catalog_private, msm_dp_catalog);
-
- drm_dbg_dp(catalog->drm_dev, "DP_CONFIGURATION_CTRL=0x%x\n", cfg);
-
- msm_dp_write_link(msm_dp_catalog, REG_DP_CONFIGURATION_CTRL, cfg);
-}
-
-void msm_dp_catalog_ctrl_lane_mapping(struct msm_dp_catalog *msm_dp_catalog)
-{
- u32 ln_0 = 0, ln_1 = 1, ln_2 = 2, ln_3 = 3; /* One-to-One mapping */
- u32 ln_mapping;
-
- ln_mapping = ln_0 << LANE0_MAPPING_SHIFT;
- ln_mapping |= ln_1 << LANE1_MAPPING_SHIFT;
- ln_mapping |= ln_2 << LANE2_MAPPING_SHIFT;
- ln_mapping |= ln_3 << LANE3_MAPPING_SHIFT;
-
- msm_dp_write_link(msm_dp_catalog, REG_DP_LOGICAL2PHYSICAL_LANE_MAPPING,
- ln_mapping);
-}
-
-void msm_dp_catalog_ctrl_psr_mainlink_enable(struct msm_dp_catalog *msm_dp_catalog,
- bool enable)
-{
- u32 val;
-
- val = msm_dp_read_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL);
-
- if (enable)
- val |= DP_MAINLINK_CTRL_ENABLE;
- else
- val &= ~DP_MAINLINK_CTRL_ENABLE;
-
- msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL, val);
-}
-
-void msm_dp_catalog_ctrl_mainlink_ctrl(struct msm_dp_catalog *msm_dp_catalog,
- bool enable)
-{
- u32 mainlink_ctrl;
- struct msm_dp_catalog_private *catalog = container_of(msm_dp_catalog,
- struct msm_dp_catalog_private, msm_dp_catalog);
-
- drm_dbg_dp(catalog->drm_dev, "enable=%d\n", enable);
- if (enable) {
- /*
- * To make sure link reg writes happens before other operation,
- * msm_dp_write_link() function uses writel()
- */
- mainlink_ctrl = msm_dp_read_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL);
-
- mainlink_ctrl &= ~(DP_MAINLINK_CTRL_RESET |
- DP_MAINLINK_CTRL_ENABLE);
- msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL, mainlink_ctrl);
-
- mainlink_ctrl |= DP_MAINLINK_CTRL_RESET;
- msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL, mainlink_ctrl);
-
- mainlink_ctrl &= ~DP_MAINLINK_CTRL_RESET;
- msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL, mainlink_ctrl);
-
- mainlink_ctrl |= (DP_MAINLINK_CTRL_ENABLE |
- DP_MAINLINK_FB_BOUNDARY_SEL);
- msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL, mainlink_ctrl);
- } else {
- mainlink_ctrl = msm_dp_read_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL);
- mainlink_ctrl &= ~DP_MAINLINK_CTRL_ENABLE;
- msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL, mainlink_ctrl);
- }
-}
-
-void msm_dp_catalog_ctrl_config_misc(struct msm_dp_catalog *msm_dp_catalog,
- u32 colorimetry_cfg,
- u32 test_bits_depth)
-{
- u32 misc_val;
- struct msm_dp_catalog_private *catalog = container_of(msm_dp_catalog,
- struct msm_dp_catalog_private, msm_dp_catalog);
-
- misc_val = msm_dp_read_link(msm_dp_catalog, REG_DP_MISC1_MISC0);
-
- /* clear bpp bits */
- misc_val &= ~(0x07 << DP_MISC0_TEST_BITS_DEPTH_SHIFT);
- misc_val |= colorimetry_cfg << DP_MISC0_COLORIMETRY_CFG_SHIFT;
- misc_val |= test_bits_depth << DP_MISC0_TEST_BITS_DEPTH_SHIFT;
- /* Configure clock to synchronous mode */
- misc_val |= DP_MISC0_SYNCHRONOUS_CLK;
-
- drm_dbg_dp(catalog->drm_dev, "misc settings = 0x%x\n", misc_val);
- msm_dp_write_link(msm_dp_catalog, REG_DP_MISC1_MISC0, misc_val);
-}
-
-void msm_dp_catalog_setup_peripheral_flush(struct msm_dp_catalog *msm_dp_catalog)
-{
- u32 mainlink_ctrl, hw_revision;
-
- mainlink_ctrl = msm_dp_read_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL);
-
- hw_revision = msm_dp_catalog_hw_revision(msm_dp_catalog);
- if (hw_revision >= DP_HW_VERSION_1_2)
- mainlink_ctrl |= DP_MAINLINK_FLUSH_MODE_SDE_PERIPH_UPDATE;
- else
- mainlink_ctrl |= DP_MAINLINK_FLUSH_MODE_UPDATE_SDP;
-
- msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL, mainlink_ctrl);
-}
-
-void msm_dp_catalog_ctrl_config_msa(struct msm_dp_catalog *msm_dp_catalog,
- u32 rate, u32 stream_rate_khz,
- bool is_ycbcr_420)
-{
- u32 pixel_m, pixel_n;
- u32 mvid, nvid, pixel_div = 0, dispcc_input_rate;
- u32 const nvid_fixed = DP_LINK_CONSTANT_N_VALUE;
- u32 const link_rate_hbr2 = 540000;
- u32 const link_rate_hbr3 = 810000;
- unsigned long den, num;
-
- struct msm_dp_catalog_private *catalog = container_of(msm_dp_catalog,
- struct msm_dp_catalog_private, msm_dp_catalog);
-
- if (rate == link_rate_hbr3)
- pixel_div = 6;
- else if (rate == 162000 || rate == 270000)
- pixel_div = 2;
- else if (rate == link_rate_hbr2)
- pixel_div = 4;
- else
- DRM_ERROR("Invalid pixel mux divider\n");
-
- dispcc_input_rate = (rate * 10) / pixel_div;
-
- rational_best_approximation(dispcc_input_rate, stream_rate_khz,
- (unsigned long)(1 << 16) - 1,
- (unsigned long)(1 << 16) - 1, &den, &num);
-
- den = ~(den - num);
- den = den & 0xFFFF;
- pixel_m = num;
- pixel_n = den;
-
- mvid = (pixel_m & 0xFFFF) * 5;
- nvid = (0xFFFF & (~pixel_n)) + (pixel_m & 0xFFFF);
-
- if (nvid < nvid_fixed) {
- u32 temp;
-
- temp = (nvid_fixed / nvid) * nvid;
- mvid = (nvid_fixed / nvid) * mvid;
- nvid = temp;
- }
-
- if (is_ycbcr_420)
- mvid /= 2;
-
- if (link_rate_hbr2 == rate)
- nvid *= 2;
-
- if (link_rate_hbr3 == rate)
- nvid *= 3;
-
- drm_dbg_dp(catalog->drm_dev, "mvid=0x%x, nvid=0x%x\n", mvid, nvid);
- msm_dp_write_link(msm_dp_catalog, REG_DP_SOFTWARE_MVID, mvid);
- msm_dp_write_link(msm_dp_catalog, REG_DP_SOFTWARE_NVID, nvid);
- msm_dp_write_p0(msm_dp_catalog, MMSS_DP_DSC_DTO, 0x0);
-}
-
-int msm_dp_catalog_ctrl_set_pattern_state_bit(struct msm_dp_catalog *msm_dp_catalog,
- u32 state_bit)
-{
- int bit, ret;
- u32 data;
- struct msm_dp_catalog_private *catalog = container_of(msm_dp_catalog,
- struct msm_dp_catalog_private, msm_dp_catalog);
-
- bit = BIT(state_bit - 1);
- drm_dbg_dp(catalog->drm_dev, "hw: bit=%d train=%d\n", bit, state_bit);
- msm_dp_catalog_ctrl_state_ctrl(msm_dp_catalog, bit);
-
- bit = BIT(state_bit - 1) << DP_MAINLINK_READY_LINK_TRAINING_SHIFT;
-
- /* Poll for mainlink ready status */
- ret = readx_poll_timeout(readl, msm_dp_catalog->link_base +
- REG_DP_MAINLINK_READY,
- data, data & bit,
- POLLING_SLEEP_US, POLLING_TIMEOUT_US);
- if (ret < 0) {
- DRM_ERROR("set state_bit for link_train=%d failed\n", state_bit);
- return ret;
- }
- return 0;
-}
-
/**
* msm_dp_catalog_hw_revision() - retrieve DP hw revision
*
@@ -317,50 +104,6 @@ u32 msm_dp_catalog_hw_revision(const struct msm_dp_catalog *msm_dp_catalog)
return msm_dp_read_ahb(msm_dp_catalog, REG_DP_HW_VERSION);
}
-/**
- * msm_dp_catalog_ctrl_reset() - reset DP controller
- *
- * @msm_dp_catalog: DP catalog structure
- *
- * return: void
- *
- * This function reset the DP controller
- *
- * NOTE: reset DP controller will also clear any pending HPD related interrupts
- *
- */
-void msm_dp_catalog_ctrl_reset(struct msm_dp_catalog *msm_dp_catalog)
-{
- u32 sw_reset;
-
- sw_reset = msm_dp_read_ahb(msm_dp_catalog, REG_DP_SW_RESET);
-
- sw_reset |= DP_SW_RESET;
- msm_dp_write_ahb(msm_dp_catalog, REG_DP_SW_RESET, sw_reset);
- usleep_range(1000, 1100); /* h/w recommended delay */
-
- sw_reset &= ~DP_SW_RESET;
- msm_dp_write_ahb(msm_dp_catalog, REG_DP_SW_RESET, sw_reset);
-}
-
-bool msm_dp_catalog_ctrl_mainlink_ready(struct msm_dp_catalog *msm_dp_catalog)
-{
- u32 data;
- int ret;
-
- /* Poll for mainlink ready status */
- ret = readl_poll_timeout(msm_dp_catalog->link_base +
- REG_DP_MAINLINK_READY,
- data, data & DP_MAINLINK_READY_FOR_VIDEO,
- POLLING_SLEEP_US, POLLING_TIMEOUT_US);
- if (ret < 0) {
- DRM_ERROR("mainlink not ready\n");
- return false;
- }
-
- return true;
-}
-
void msm_dp_catalog_ctrl_enable_irq(struct msm_dp_catalog *msm_dp_catalog,
bool enable)
{
@@ -413,43 +156,6 @@ void msm_dp_catalog_ctrl_hpd_disable(struct msm_dp_catalog *msm_dp_catalog)
msm_dp_write_aux(msm_dp_catalog, REG_DP_DP_HPD_CTRL, 0);
}
-static void msm_dp_catalog_enable_sdp(struct msm_dp_catalog *msm_dp_catalog)
-{
- /* trigger sdp */
- msm_dp_write_link(msm_dp_catalog, MMSS_DP_SDP_CFG3, UPDATE_SDP);
- msm_dp_write_link(msm_dp_catalog, MMSS_DP_SDP_CFG3, 0x0);
-}
-
-void msm_dp_catalog_ctrl_config_psr(struct msm_dp_catalog *msm_dp_catalog)
-{
- u32 config;
-
- /* enable PSR1 function */
- config = msm_dp_read_link(msm_dp_catalog, REG_PSR_CONFIG);
- config |= PSR1_SUPPORTED;
- msm_dp_write_link(msm_dp_catalog, REG_PSR_CONFIG, config);
-
- msm_dp_write_ahb(msm_dp_catalog, REG_DP_INTR_MASK4, DP_INTERRUPT_MASK4);
- msm_dp_catalog_enable_sdp(msm_dp_catalog);
-}
-
-void msm_dp_catalog_ctrl_set_psr(struct msm_dp_catalog *msm_dp_catalog, bool enter)
-{
- u32 cmd;
-
- cmd = msm_dp_read_link(msm_dp_catalog, REG_PSR_CMD);
-
- cmd &= ~(PSR_ENTER | PSR_EXIT);
-
- if (enter)
- cmd |= PSR_ENTER;
- else
- cmd |= PSR_EXIT;
-
- msm_dp_catalog_enable_sdp(msm_dp_catalog);
- msm_dp_write_link(msm_dp_catalog, REG_PSR_CMD, cmd);
-}
-
u32 msm_dp_catalog_link_is_connected(struct msm_dp_catalog *msm_dp_catalog)
{
struct msm_dp_catalog_private *catalog = container_of(msm_dp_catalog,
@@ -495,6 +201,11 @@ u32 msm_dp_catalog_ctrl_read_psr_interrupt_status(struct msm_dp_catalog *msm_dp_
return intr;
}
+void msm_dp_catalog_ctrl_config_psr_interrupt(struct msm_dp_catalog *msm_dp_catalog)
+{
+ msm_dp_write_ahb(msm_dp_catalog, REG_DP_INTR_MASK4, DP_INTERRUPT_MASK4);
+}
+
int msm_dp_catalog_ctrl_get_interrupt(struct msm_dp_catalog *msm_dp_catalog)
{
u32 intr, intr_ack;
@@ -509,96 +220,6 @@ int msm_dp_catalog_ctrl_get_interrupt(struct msm_dp_catalog *msm_dp_catalog)
return intr;
}
-void msm_dp_catalog_ctrl_phy_reset(struct msm_dp_catalog *msm_dp_catalog)
-{
- msm_dp_write_ahb(msm_dp_catalog, REG_DP_PHY_CTRL,
- DP_PHY_CTRL_SW_RESET | DP_PHY_CTRL_SW_RESET_PLL);
- usleep_range(1000, 1100); /* h/w recommended delay */
- msm_dp_write_ahb(msm_dp_catalog, REG_DP_PHY_CTRL, 0x0);
-}
-
-void msm_dp_catalog_ctrl_send_phy_pattern(struct msm_dp_catalog *msm_dp_catalog,
- u32 pattern)
-{
- struct msm_dp_catalog_private *catalog = container_of(msm_dp_catalog,
- struct msm_dp_catalog_private, msm_dp_catalog);
- u32 value = 0x0;
-
- /* Make sure to clear the current pattern before starting a new one */
- msm_dp_write_link(msm_dp_catalog, REG_DP_STATE_CTRL, 0x0);
-
- drm_dbg_dp(catalog->drm_dev, "pattern: %#x\n", pattern);
- switch (pattern) {
- case DP_PHY_TEST_PATTERN_D10_2:
- msm_dp_write_link(msm_dp_catalog, REG_DP_STATE_CTRL,
- DP_STATE_CTRL_LINK_TRAINING_PATTERN1);
- break;
- case DP_PHY_TEST_PATTERN_ERROR_COUNT:
- value &= ~(1 << 16);
- msm_dp_write_link(msm_dp_catalog, REG_DP_HBR2_COMPLIANCE_SCRAMBLER_RESET,
- value);
- value |= SCRAMBLER_RESET_COUNT_VALUE;
- msm_dp_write_link(msm_dp_catalog, REG_DP_HBR2_COMPLIANCE_SCRAMBLER_RESET,
- value);
- msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_LEVELS,
- DP_MAINLINK_SAFE_TO_EXIT_LEVEL_2);
- msm_dp_write_link(msm_dp_catalog, REG_DP_STATE_CTRL,
- DP_STATE_CTRL_LINK_SYMBOL_ERR_MEASURE);
- break;
- case DP_PHY_TEST_PATTERN_PRBS7:
- msm_dp_write_link(msm_dp_catalog, REG_DP_STATE_CTRL,
- DP_STATE_CTRL_LINK_PRBS7);
- break;
- case DP_PHY_TEST_PATTERN_80BIT_CUSTOM:
- msm_dp_write_link(msm_dp_catalog, REG_DP_STATE_CTRL,
- DP_STATE_CTRL_LINK_TEST_CUSTOM_PATTERN);
- /* 00111110000011111000001111100000 */
- msm_dp_write_link(msm_dp_catalog, REG_DP_TEST_80BIT_CUSTOM_PATTERN_REG0,
- 0x3E0F83E0);
- /* 00001111100000111110000011111000 */
- msm_dp_write_link(msm_dp_catalog, REG_DP_TEST_80BIT_CUSTOM_PATTERN_REG1,
- 0x0F83E0F8);
- /* 1111100000111110 */
- msm_dp_write_link(msm_dp_catalog, REG_DP_TEST_80BIT_CUSTOM_PATTERN_REG2,
- 0x0000F83E);
- break;
- case DP_PHY_TEST_PATTERN_CP2520:
- value = msm_dp_read_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL);
- value &= ~DP_MAINLINK_CTRL_SW_BYPASS_SCRAMBLER;
- msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL, value);
-
- value = DP_HBR2_ERM_PATTERN;
- msm_dp_write_link(msm_dp_catalog, REG_DP_HBR2_COMPLIANCE_SCRAMBLER_RESET,
- value);
- value |= SCRAMBLER_RESET_COUNT_VALUE;
- msm_dp_write_link(msm_dp_catalog, REG_DP_HBR2_COMPLIANCE_SCRAMBLER_RESET,
- value);
- msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_LEVELS,
- DP_MAINLINK_SAFE_TO_EXIT_LEVEL_2);
- msm_dp_write_link(msm_dp_catalog, REG_DP_STATE_CTRL,
- DP_STATE_CTRL_LINK_SYMBOL_ERR_MEASURE);
- value = msm_dp_read_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL);
- value |= DP_MAINLINK_CTRL_ENABLE;
- msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL, value);
- break;
- case DP_PHY_TEST_PATTERN_SEL_MASK:
- msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL,
- DP_MAINLINK_CTRL_ENABLE);
- msm_dp_write_link(msm_dp_catalog, REG_DP_STATE_CTRL,
- DP_STATE_CTRL_LINK_TRAINING_PATTERN4);
- break;
- default:
- drm_dbg_dp(catalog->drm_dev,
- "No valid test pattern requested: %#x\n", pattern);
- break;
- }
-}
-
-u32 msm_dp_catalog_ctrl_read_phy_pattern(struct msm_dp_catalog *msm_dp_catalog)
-{
- return msm_dp_read_link(msm_dp_catalog, REG_DP_MAINLINK_READY);
-}
-
/* panel related catalog functions */
int msm_dp_catalog_panel_timing_cfg(struct msm_dp_catalog *msm_dp_catalog, u32 total,
u32 sync_start, u32 width_blanking, u32 msm_dp_active)
diff --git a/drivers/gpu/drm/msm/dp/dp_catalog.h b/drivers/gpu/drm/msm/dp/dp_catalog.h
index fbcaf1fba66e7c5918137f7f8092f0749dd4da8c..ad3c6bfbd8bb449d7bee92b55b74ddddd1ce4ed0 100644
--- a/drivers/gpu/drm/msm/dp/dp_catalog.h
+++ b/drivers/gpu/drm/msm/dp/dp_catalog.h
@@ -136,37 +136,17 @@ void msm_dp_catalog_snapshot(struct msm_dp_catalog *msm_dp_catalog, struct msm_d
u32 msm_dp_catalog_aux_get_irq(struct msm_dp_catalog *msm_dp_catalog);
/* DP Controller APIs */
-void msm_dp_catalog_ctrl_state_ctrl(struct msm_dp_catalog *msm_dp_catalog, u32 state);
-void msm_dp_catalog_ctrl_config_ctrl(struct msm_dp_catalog *msm_dp_catalog, u32 config);
-void msm_dp_catalog_ctrl_lane_mapping(struct msm_dp_catalog *msm_dp_catalog);
-void msm_dp_catalog_ctrl_mainlink_ctrl(struct msm_dp_catalog *msm_dp_catalog, bool enable);
-void msm_dp_catalog_ctrl_psr_mainlink_enable(struct msm_dp_catalog *msm_dp_catalog, bool enable);
-void msm_dp_catalog_setup_peripheral_flush(struct msm_dp_catalog *msm_dp_catalog);
-void msm_dp_catalog_ctrl_config_misc(struct msm_dp_catalog *msm_dp_catalog, u32 cc, u32 tb);
-void msm_dp_catalog_ctrl_config_msa(struct msm_dp_catalog *msm_dp_catalog, u32 rate,
- u32 stream_rate_khz, bool is_ycbcr_420);
-int msm_dp_catalog_ctrl_set_pattern_state_bit(struct msm_dp_catalog *msm_dp_catalog, u32 pattern);
u32 msm_dp_catalog_hw_revision(const struct msm_dp_catalog *msm_dp_catalog);
-void msm_dp_catalog_ctrl_reset(struct msm_dp_catalog *msm_dp_catalog);
-bool msm_dp_catalog_ctrl_mainlink_ready(struct msm_dp_catalog *msm_dp_catalog);
void msm_dp_catalog_ctrl_enable_irq(struct msm_dp_catalog *msm_dp_catalog, bool enable);
void msm_dp_catalog_hpd_config_intr(struct msm_dp_catalog *msm_dp_catalog,
u32 intr_mask, bool en);
void msm_dp_catalog_ctrl_hpd_enable(struct msm_dp_catalog *msm_dp_catalog);
void msm_dp_catalog_ctrl_hpd_disable(struct msm_dp_catalog *msm_dp_catalog);
-void msm_dp_catalog_ctrl_config_psr(struct msm_dp_catalog *msm_dp_catalog);
-void msm_dp_catalog_ctrl_set_psr(struct msm_dp_catalog *msm_dp_catalog, bool enter);
u32 msm_dp_catalog_link_is_connected(struct msm_dp_catalog *msm_dp_catalog);
u32 msm_dp_catalog_hpd_get_intr_status(struct msm_dp_catalog *msm_dp_catalog);
-void msm_dp_catalog_ctrl_phy_reset(struct msm_dp_catalog *msm_dp_catalog);
int msm_dp_catalog_ctrl_get_interrupt(struct msm_dp_catalog *msm_dp_catalog);
+void msm_dp_catalog_ctrl_config_psr_interrupt(struct msm_dp_catalog *msm_dp_catalog);
u32 msm_dp_catalog_ctrl_read_psr_interrupt_status(struct msm_dp_catalog *msm_dp_catalog);
-void msm_dp_catalog_ctrl_update_transfer_unit(struct msm_dp_catalog *msm_dp_catalog,
- u32 msm_dp_tu, u32 valid_boundary,
- u32 valid_boundary2);
-void msm_dp_catalog_ctrl_send_phy_pattern(struct msm_dp_catalog *msm_dp_catalog,
- u32 pattern);
-u32 msm_dp_catalog_ctrl_read_phy_pattern(struct msm_dp_catalog *msm_dp_catalog);
/* DP Panel APIs */
int msm_dp_catalog_panel_timing_cfg(struct msm_dp_catalog *msm_dp_catalog, u32 total,
diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.c b/drivers/gpu/drm/msm/dp/dp_ctrl.c
index bc2ca8133b790fc049e18ab3b37a629558664dd4..6ca2e055717b55c9eb064887948cf095fbfc1c40 100644
--- a/drivers/gpu/drm/msm/dp/dp_ctrl.c
+++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c
@@ -8,9 +8,11 @@
#include <linux/types.h>
#include <linux/completion.h>
#include <linux/delay.h>
+#include <linux/iopoll.h>
#include <linux/phy/phy.h>
#include <linux/phy/phy-dp.h>
#include <linux/pm_opp.h>
+#include <linux/rational.h>
#include <drm/display/drm_dp_helper.h>
#include <drm/drm_fixed.h>
@@ -20,6 +22,9 @@
#include "dp_ctrl.h"
#include "dp_link.h"
+#define POLLING_SLEEP_US 1000
+#define POLLING_TIMEOUT_US 10000
+
#define DP_KHZ_TO_HZ 1000
#define IDLE_PATTERN_COMPLETION_TIMEOUT_JIFFIES (30 * HZ / 1000) /* 30 ms */
#define PSR_OPERATION_COMPLETION_TIMEOUT_JIFFIES (300 * HZ / 1000) /* 300 ms */
@@ -118,6 +123,114 @@ static int msm_dp_aux_link_configure(struct drm_dp_aux *aux,
return 0;
}
+/*
+ * NOTE: resetting DP controller will also clear any pending HPD related interrupts
+ */
+static void msm_dp_ctrl_reset(struct msm_dp_ctrl_private *ctrl)
+{
+ struct msm_dp_catalog *msm_dp_catalog = ctrl->catalog;
+ u32 sw_reset;
+
+ sw_reset = msm_dp_read_ahb(msm_dp_catalog, REG_DP_SW_RESET);
+
+ sw_reset |= DP_SW_RESET;
+ msm_dp_write_ahb(msm_dp_catalog, REG_DP_SW_RESET, sw_reset);
+ usleep_range(1000, 1100); /* h/w recommended delay */
+
+ sw_reset &= ~DP_SW_RESET;
+ msm_dp_write_ahb(msm_dp_catalog, REG_DP_SW_RESET, sw_reset);
+}
+
+static void msm_dp_ctrl_psr_mainlink_enable(struct msm_dp_ctrl_private *ctrl)
+{
+ struct msm_dp_catalog *msm_dp_catalog = ctrl->catalog;
+ u32 val;
+
+ val = msm_dp_read_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL);
+ val |= DP_MAINLINK_CTRL_ENABLE;
+ msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL, val);
+}
+
+static void msm_dp_ctrl_psr_mainlink_disable(struct msm_dp_ctrl_private *ctrl)
+{
+ struct msm_dp_catalog *msm_dp_catalog = ctrl->catalog;
+ u32 val;
+
+ val = msm_dp_read_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL);
+ val &= ~DP_MAINLINK_CTRL_ENABLE;
+ msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL, val);
+}
+
+static void msm_dp_ctrl_mainlink_enable(struct msm_dp_ctrl_private *ctrl)
+{
+ struct msm_dp_catalog *msm_dp_catalog = ctrl->catalog;
+ u32 mainlink_ctrl;
+
+ drm_dbg_dp(ctrl->drm_dev, "enable\n");
+
+ mainlink_ctrl = msm_dp_read_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL);
+
+ mainlink_ctrl &= ~(DP_MAINLINK_CTRL_RESET |
+ DP_MAINLINK_CTRL_ENABLE);
+ msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL, mainlink_ctrl);
+
+ mainlink_ctrl |= DP_MAINLINK_CTRL_RESET;
+ msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL, mainlink_ctrl);
+
+ mainlink_ctrl &= ~DP_MAINLINK_CTRL_RESET;
+ msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL, mainlink_ctrl);
+
+ mainlink_ctrl |= (DP_MAINLINK_CTRL_ENABLE |
+ DP_MAINLINK_FB_BOUNDARY_SEL);
+ msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL, mainlink_ctrl);
+}
+
+static void msm_dp_ctrl_mainlink_disable(struct msm_dp_ctrl_private *ctrl)
+{
+ struct msm_dp_catalog *msm_dp_catalog = ctrl->catalog;
+ u32 mainlink_ctrl;
+
+ drm_dbg_dp(ctrl->drm_dev, "disable\n");
+
+ mainlink_ctrl = msm_dp_read_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL);
+ mainlink_ctrl &= ~DP_MAINLINK_CTRL_ENABLE;
+ msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL, mainlink_ctrl);
+}
+
+static void msm_dp_setup_peripheral_flush(struct msm_dp_ctrl_private *ctrl)
+{
+ struct msm_dp_catalog *msm_dp_catalog = ctrl->catalog;
+ u32 mainlink_ctrl, hw_revision;
+
+ mainlink_ctrl = msm_dp_read_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL);
+
+ hw_revision = msm_dp_catalog_hw_revision(msm_dp_catalog);
+ if (hw_revision >= DP_HW_VERSION_1_2)
+ mainlink_ctrl |= DP_MAINLINK_FLUSH_MODE_SDE_PERIPH_UPDATE;
+ else
+ mainlink_ctrl |= DP_MAINLINK_FLUSH_MODE_UPDATE_SDP;
+
+ msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL, mainlink_ctrl);
+}
+
+static bool msm_dp_ctrl_mainlink_ready(struct msm_dp_ctrl_private *ctrl)
+{
+ struct msm_dp_catalog *msm_dp_catalog = ctrl->catalog;
+ u32 data;
+ int ret;
+
+ /* Poll for mainlink ready status */
+ ret = readl_poll_timeout(msm_dp_catalog->link_base + REG_DP_MAINLINK_READY,
+ data, data & DP_MAINLINK_READY_FOR_VIDEO,
+ POLLING_SLEEP_US, POLLING_TIMEOUT_US);
+ if (ret < 0) {
+ DRM_ERROR("mainlink not ready\n");
+ return false;
+ }
+
+ return true;
+}
+
void msm_dp_ctrl_push_idle(struct msm_dp_ctrl *msm_dp_ctrl)
{
struct msm_dp_ctrl_private *ctrl;
@@ -125,7 +238,7 @@ void msm_dp_ctrl_push_idle(struct msm_dp_ctrl *msm_dp_ctrl)
ctrl = container_of(msm_dp_ctrl, struct msm_dp_ctrl_private, msm_dp_ctrl);
reinit_completion(&ctrl->idle_comp);
- msm_dp_catalog_ctrl_state_ctrl(ctrl->catalog, DP_STATE_CTRL_PUSH_IDLE);
+ msm_dp_write_link(ctrl->catalog, REG_DP_STATE_CTRL, DP_STATE_CTRL_PUSH_IDLE);
if (!wait_for_completion_timeout(&ctrl->idle_comp,
IDLE_PATTERN_COMPLETION_TIMEOUT_JIFFIES))
@@ -170,23 +283,51 @@ static void msm_dp_ctrl_config_ctrl(struct msm_dp_ctrl_private *ctrl)
if (ctrl->panel->psr_cap.version)
config |= DP_CONFIGURATION_CTRL_SEND_VSC;
- msm_dp_catalog_ctrl_config_ctrl(ctrl->catalog, config);
+ drm_dbg_dp(ctrl->drm_dev, "DP_CONFIGURATION_CTRL=0x%x\n", config);
+
+ msm_dp_write_link(ctrl->catalog, REG_DP_CONFIGURATION_CTRL, config);
+}
+
+static void msm_dp_ctrl_lane_mapping(struct msm_dp_ctrl_private *ctrl)
+{
+ struct msm_dp_catalog *msm_dp_catalog = ctrl->catalog;
+ u32 ln_0 = 0, ln_1 = 1, ln_2 = 2, ln_3 = 3; /* One-to-One mapping */
+ u32 ln_mapping;
+
+ ln_mapping = ln_0 << LANE0_MAPPING_SHIFT;
+ ln_mapping |= ln_1 << LANE1_MAPPING_SHIFT;
+ ln_mapping |= ln_2 << LANE2_MAPPING_SHIFT;
+ ln_mapping |= ln_3 << LANE3_MAPPING_SHIFT;
+
+ msm_dp_write_link(msm_dp_catalog, REG_DP_LOGICAL2PHYSICAL_LANE_MAPPING,
+ ln_mapping);
}
static void msm_dp_ctrl_configure_source_params(struct msm_dp_ctrl_private *ctrl)
{
- u32 cc, tb;
+ u32 colorimetry_cfg, test_bits_depth, misc_val;
- msm_dp_catalog_ctrl_lane_mapping(ctrl->catalog);
- msm_dp_catalog_ctrl_mainlink_ctrl(ctrl->catalog, true);
- msm_dp_catalog_setup_peripheral_flush(ctrl->catalog);
+ msm_dp_ctrl_lane_mapping(ctrl);
+ msm_dp_ctrl_mainlink_enable(ctrl);
+ msm_dp_setup_peripheral_flush(ctrl);
msm_dp_ctrl_config_ctrl(ctrl);
- tb = msm_dp_link_get_test_bits_depth(ctrl->link,
- ctrl->panel->msm_dp_mode.bpp);
- cc = msm_dp_link_get_colorimetry_config(ctrl->link);
- msm_dp_catalog_ctrl_config_misc(ctrl->catalog, cc, tb);
+ test_bits_depth = msm_dp_link_get_test_bits_depth(ctrl->link, ctrl->panel->msm_dp_mode.bpp);
+ colorimetry_cfg = msm_dp_link_get_colorimetry_config(ctrl->link);
+
+ misc_val = msm_dp_read_link(ctrl->catalog, REG_DP_MISC1_MISC0);
+
+ /* clear bpp bits */
+ misc_val &= ~(0x07 << DP_MISC0_TEST_BITS_DEPTH_SHIFT);
+ misc_val |= colorimetry_cfg << DP_MISC0_COLORIMETRY_CFG_SHIFT;
+ misc_val |= test_bits_depth << DP_MISC0_TEST_BITS_DEPTH_SHIFT;
+ /* Configure clock to synchronous mode */
+ misc_val |= DP_MISC0_SYNCHRONOUS_CLK;
+
+ drm_dbg_dp(ctrl->drm_dev, "misc settings = 0x%x\n", misc_val);
+ msm_dp_write_link(ctrl->catalog, REG_DP_MISC1_MISC0, misc_val);
+
msm_dp_panel_timing_cfg(ctrl->panel);
}
@@ -1003,8 +1144,9 @@ static void msm_dp_ctrl_setup_tr_unit(struct msm_dp_ctrl_private *ctrl)
pr_debug("dp_tu=0x%x, valid_boundary=0x%x, valid_boundary2=0x%x\n",
msm_dp_tu, valid_boundary, valid_boundary2);
- msm_dp_catalog_ctrl_update_transfer_unit(ctrl->catalog,
- msm_dp_tu, valid_boundary, valid_boundary2);
+ msm_dp_write_link(ctrl->catalog, REG_DP_VALID_BOUNDARY, valid_boundary);
+ msm_dp_write_link(ctrl->catalog, REG_DP_TU, msm_dp_tu);
+ msm_dp_write_link(ctrl->catalog, REG_DP_VALID_BOUNDARY_2, valid_boundary2);
}
static int msm_dp_ctrl_wait4video_ready(struct msm_dp_ctrl_private *ctrl)
@@ -1114,6 +1256,30 @@ static int msm_dp_ctrl_read_link_status(struct msm_dp_ctrl_private *ctrl,
return ret;
}
+static int msm_dp_ctrl_set_pattern_state_bit(struct msm_dp_ctrl_private *ctrl,
+ u32 state_bit)
+{
+ int bit, ret;
+ u32 data;
+
+ bit = BIT(state_bit - 1);
+ drm_dbg_dp(ctrl->drm_dev, "hw: bit=%d train=%d\n", bit, state_bit);
+ msm_dp_write_link(ctrl->catalog, REG_DP_STATE_CTRL, bit);
+
+ bit = BIT(state_bit - 1) << DP_MAINLINK_READY_LINK_TRAINING_SHIFT;
+
+ /* Poll for mainlink ready status */
+ ret = readx_poll_timeout(readl, ctrl->catalog->link_base + REG_DP_MAINLINK_READY,
+ data, data & bit,
+ POLLING_SLEEP_US, POLLING_TIMEOUT_US);
+ if (ret < 0) {
+ DRM_ERROR("set state_bit for link_train=%d failed\n", state_bit);
+ return ret;
+ }
+
+ return 0;
+}
+
static int msm_dp_ctrl_link_train_1(struct msm_dp_ctrl_private *ctrl,
int *training_step)
{
@@ -1121,11 +1287,11 @@ static int msm_dp_ctrl_link_train_1(struct msm_dp_ctrl_private *ctrl,
u8 link_status[DP_LINK_STATUS_SIZE];
int const maximum_retries = 4;
- msm_dp_catalog_ctrl_state_ctrl(ctrl->catalog, 0);
+ msm_dp_write_link(ctrl->catalog, REG_DP_STATE_CTRL, 0);
*training_step = DP_TRAINING_1;
- ret = msm_dp_catalog_ctrl_set_pattern_state_bit(ctrl->catalog, 1);
+ ret = msm_dp_ctrl_set_pattern_state_bit(ctrl, 1);
if (ret)
return ret;
msm_dp_ctrl_train_pattern_set(ctrl, DP_TRAINING_PATTERN_1 |
@@ -1228,7 +1394,7 @@ static int msm_dp_ctrl_link_train_2(struct msm_dp_ctrl_private *ctrl,
int const maximum_retries = 5;
u8 link_status[DP_LINK_STATUS_SIZE];
- msm_dp_catalog_ctrl_state_ctrl(ctrl->catalog, 0);
+ msm_dp_write_link(ctrl->catalog, REG_DP_STATE_CTRL, 0);
*training_step = DP_TRAINING_2;
@@ -1243,7 +1409,7 @@ static int msm_dp_ctrl_link_train_2(struct msm_dp_ctrl_private *ctrl,
state_ctrl_bit = 2;
}
- ret = msm_dp_catalog_ctrl_set_pattern_state_bit(ctrl->catalog, state_ctrl_bit);
+ ret = msm_dp_ctrl_set_pattern_state_bit(ctrl, state_ctrl_bit);
if (ret)
return ret;
@@ -1321,7 +1487,7 @@ static int msm_dp_ctrl_link_train(struct msm_dp_ctrl_private *ctrl,
drm_dbg_dp(ctrl->drm_dev, "link training #2 successful\n");
end:
- msm_dp_catalog_ctrl_state_ctrl(ctrl->catalog, 0);
+ msm_dp_write_link(ctrl->catalog, REG_DP_STATE_CTRL, 0);
return ret;
}
@@ -1331,7 +1497,7 @@ static int msm_dp_ctrl_setup_main_link(struct msm_dp_ctrl_private *ctrl,
{
int ret = 0;
- msm_dp_catalog_ctrl_mainlink_ctrl(ctrl->catalog, true);
+ msm_dp_ctrl_mainlink_enable(ctrl);
if (ctrl->link->sink_request & DP_TEST_LINK_PHY_TEST_PATTERN)
return ret;
@@ -1470,7 +1636,7 @@ void msm_dp_ctrl_reset_irq_ctrl(struct msm_dp_ctrl *msm_dp_ctrl, bool enable)
ctrl = container_of(msm_dp_ctrl, struct msm_dp_ctrl_private, msm_dp_ctrl);
- msm_dp_catalog_ctrl_reset(ctrl->catalog);
+ msm_dp_ctrl_reset(ctrl);
/*
* all dp controller programmable registers will not
@@ -1481,16 +1647,60 @@ void msm_dp_ctrl_reset_irq_ctrl(struct msm_dp_ctrl *msm_dp_ctrl, bool enable)
msm_dp_catalog_ctrl_enable_irq(ctrl->catalog, enable);
}
+static void msm_dp_ctrl_enable_sdp(struct msm_dp_ctrl_private *ctrl)
+{
+ struct msm_dp_catalog *msm_dp_catalog = ctrl->catalog;
+
+ /* trigger sdp */
+ msm_dp_write_link(msm_dp_catalog, MMSS_DP_SDP_CFG3, UPDATE_SDP);
+ msm_dp_write_link(msm_dp_catalog, MMSS_DP_SDP_CFG3, 0x0);
+}
+
+static void msm_dp_ctrl_psr_enter(struct msm_dp_ctrl_private *ctrl)
+{
+ struct msm_dp_catalog *msm_dp_catalog = ctrl->catalog;
+ u32 cmd;
+
+ cmd = msm_dp_read_link(msm_dp_catalog, REG_PSR_CMD);
+
+ cmd &= ~(PSR_ENTER | PSR_EXIT);
+ cmd |= PSR_ENTER;
+
+ msm_dp_ctrl_enable_sdp(ctrl);
+ msm_dp_write_link(msm_dp_catalog, REG_PSR_CMD, cmd);
+}
+
+static void msm_dp_ctrl_psr_exit(struct msm_dp_ctrl_private *ctrl)
+{
+ struct msm_dp_catalog *msm_dp_catalog = ctrl->catalog;
+ u32 cmd;
+
+ cmd = msm_dp_read_link(msm_dp_catalog, REG_PSR_CMD);
+
+ cmd &= ~(PSR_ENTER | PSR_EXIT);
+ cmd |= PSR_EXIT;
+
+ msm_dp_ctrl_enable_sdp(ctrl);
+ msm_dp_write_link(msm_dp_catalog, REG_PSR_CMD, cmd);
+}
+
void msm_dp_ctrl_config_psr(struct msm_dp_ctrl *msm_dp_ctrl)
{
- u8 cfg;
struct msm_dp_ctrl_private *ctrl = container_of(msm_dp_ctrl,
struct msm_dp_ctrl_private, msm_dp_ctrl);
+ struct msm_dp_catalog *msm_dp_catalog = ctrl->catalog;
+ u32 cfg;
if (!ctrl->panel->psr_cap.version)
return;
- msm_dp_catalog_ctrl_config_psr(ctrl->catalog);
+ /* enable PSR1 function */
+ cfg = msm_dp_read_link(msm_dp_catalog, REG_PSR_CONFIG);
+ cfg |= PSR1_SUPPORTED;
+ msm_dp_write_link(msm_dp_catalog, REG_PSR_CONFIG, cfg);
+
+ msm_dp_catalog_ctrl_config_psr_interrupt(msm_dp_catalog);
+ msm_dp_ctrl_enable_sdp(ctrl);
cfg = DP_PSR_ENABLE;
drm_dp_dpcd_write(ctrl->aux, DP_PSR_EN_CFG, &cfg, 1);
@@ -1516,29 +1726,37 @@ void msm_dp_ctrl_set_psr(struct msm_dp_ctrl *msm_dp_ctrl, bool enter)
*/
if (enter) {
reinit_completion(&ctrl->psr_op_comp);
- msm_dp_catalog_ctrl_set_psr(ctrl->catalog, true);
+ msm_dp_ctrl_psr_enter(ctrl);
if (!wait_for_completion_timeout(&ctrl->psr_op_comp,
PSR_OPERATION_COMPLETION_TIMEOUT_JIFFIES)) {
DRM_ERROR("PSR_ENTRY timedout\n");
- msm_dp_catalog_ctrl_set_psr(ctrl->catalog, false);
+ msm_dp_ctrl_psr_exit(ctrl);
return;
}
msm_dp_ctrl_push_idle(msm_dp_ctrl);
- msm_dp_catalog_ctrl_state_ctrl(ctrl->catalog, 0);
+ msm_dp_write_link(ctrl->catalog, REG_DP_STATE_CTRL, 0);
- msm_dp_catalog_ctrl_psr_mainlink_enable(ctrl->catalog, false);
+ msm_dp_ctrl_psr_mainlink_disable(ctrl);
} else {
- msm_dp_catalog_ctrl_psr_mainlink_enable(ctrl->catalog, true);
+ msm_dp_ctrl_psr_mainlink_enable(ctrl);
- msm_dp_catalog_ctrl_set_psr(ctrl->catalog, false);
- msm_dp_catalog_ctrl_state_ctrl(ctrl->catalog, DP_STATE_CTRL_SEND_VIDEO);
+ msm_dp_ctrl_psr_exit(ctrl);
+ msm_dp_write_link(ctrl->catalog, REG_DP_STATE_CTRL, DP_STATE_CTRL_SEND_VIDEO);
msm_dp_ctrl_wait4video_ready(ctrl);
- msm_dp_catalog_ctrl_state_ctrl(ctrl->catalog, 0);
+ msm_dp_write_link(ctrl->catalog, REG_DP_STATE_CTRL, 0);
}
}
+static void msm_dp_ctrl_phy_reset(struct msm_dp_ctrl_private *ctrl)
+{
+ msm_dp_write_ahb(ctrl->catalog, REG_DP_PHY_CTRL,
+ DP_PHY_CTRL_SW_RESET | DP_PHY_CTRL_SW_RESET_PLL);
+ usleep_range(1000, 1100); /* h/w recommended delay */
+ msm_dp_write_ahb(ctrl->catalog, REG_DP_PHY_CTRL, 0x0);
+}
+
void msm_dp_ctrl_phy_init(struct msm_dp_ctrl *msm_dp_ctrl)
{
struct msm_dp_ctrl_private *ctrl;
@@ -1547,7 +1765,7 @@ void msm_dp_ctrl_phy_init(struct msm_dp_ctrl *msm_dp_ctrl)
ctrl = container_of(msm_dp_ctrl, struct msm_dp_ctrl_private, msm_dp_ctrl);
phy = ctrl->phy;
- msm_dp_catalog_ctrl_phy_reset(ctrl->catalog);
+ msm_dp_ctrl_phy_reset(ctrl);
phy_init(phy);
drm_dbg_dp(ctrl->drm_dev, "phy=%p init=%d power_on=%d\n",
@@ -1562,7 +1780,7 @@ void msm_dp_ctrl_phy_exit(struct msm_dp_ctrl *msm_dp_ctrl)
ctrl = container_of(msm_dp_ctrl, struct msm_dp_ctrl_private, msm_dp_ctrl);
phy = ctrl->phy;
- msm_dp_catalog_ctrl_phy_reset(ctrl->catalog);
+ msm_dp_ctrl_phy_reset(ctrl);
phy_exit(phy);
drm_dbg_dp(ctrl->drm_dev, "phy=%p init=%d power_on=%d\n",
phy, phy->init_count, phy->power_count);
@@ -1573,7 +1791,7 @@ static int msm_dp_ctrl_reinitialize_mainlink(struct msm_dp_ctrl_private *ctrl)
struct phy *phy = ctrl->phy;
int ret = 0;
- msm_dp_catalog_ctrl_mainlink_ctrl(ctrl->catalog, false);
+ msm_dp_ctrl_mainlink_disable(ctrl);
ctrl->phy_opts.dp.lanes = ctrl->link->link_params.num_lanes;
phy_configure(phy, &ctrl->phy_opts);
/*
@@ -1604,9 +1822,9 @@ static int msm_dp_ctrl_deinitialize_mainlink(struct msm_dp_ctrl_private *ctrl)
phy = ctrl->phy;
- msm_dp_catalog_ctrl_mainlink_ctrl(ctrl->catalog, false);
+ msm_dp_ctrl_mainlink_disable(ctrl);
- msm_dp_catalog_ctrl_reset(ctrl->catalog);
+ msm_dp_ctrl_reset(ctrl);
dev_pm_opp_set_rate(ctrl->dev, 0);
msm_dp_ctrl_link_clk_disable(&ctrl->msm_dp_ctrl);
@@ -1638,13 +1856,97 @@ static int msm_dp_ctrl_link_maintenance(struct msm_dp_ctrl_private *ctrl)
msm_dp_ctrl_clear_training_pattern(ctrl);
- msm_dp_catalog_ctrl_state_ctrl(ctrl->catalog, DP_STATE_CTRL_SEND_VIDEO);
+ msm_dp_write_link(ctrl->catalog, REG_DP_STATE_CTRL, DP_STATE_CTRL_SEND_VIDEO);
ret = msm_dp_ctrl_wait4video_ready(ctrl);
end:
return ret;
}
+#define SCRAMBLER_RESET_COUNT_VALUE 0xFC
+
+static void msm_dp_ctrl_send_phy_pattern(struct msm_dp_ctrl_private *ctrl,
+ u32 pattern)
+{
+ struct msm_dp_catalog *msm_dp_catalog = ctrl->catalog;
+ u32 value = 0x0;
+
+ /* Make sure to clear the current pattern before starting a new one */
+ msm_dp_write_link(msm_dp_catalog, REG_DP_STATE_CTRL, 0x0);
+
+ drm_dbg_dp(ctrl->drm_dev, "pattern: %#x\n", pattern);
+ switch (pattern) {
+ case DP_PHY_TEST_PATTERN_D10_2:
+ msm_dp_write_link(msm_dp_catalog, REG_DP_STATE_CTRL,
+ DP_STATE_CTRL_LINK_TRAINING_PATTERN1);
+ break;
+
+ case DP_PHY_TEST_PATTERN_ERROR_COUNT:
+ value &= ~(1 << 16);
+ msm_dp_write_link(msm_dp_catalog, REG_DP_HBR2_COMPLIANCE_SCRAMBLER_RESET,
+ value);
+ value |= SCRAMBLER_RESET_COUNT_VALUE;
+ msm_dp_write_link(msm_dp_catalog, REG_DP_HBR2_COMPLIANCE_SCRAMBLER_RESET,
+ value);
+ msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_LEVELS,
+ DP_MAINLINK_SAFE_TO_EXIT_LEVEL_2);
+ msm_dp_write_link(msm_dp_catalog, REG_DP_STATE_CTRL,
+ DP_STATE_CTRL_LINK_SYMBOL_ERR_MEASURE);
+ break;
+
+ case DP_PHY_TEST_PATTERN_PRBS7:
+ msm_dp_write_link(msm_dp_catalog, REG_DP_STATE_CTRL,
+ DP_STATE_CTRL_LINK_PRBS7);
+ break;
+
+ case DP_PHY_TEST_PATTERN_80BIT_CUSTOM:
+ msm_dp_write_link(msm_dp_catalog, REG_DP_STATE_CTRL,
+ DP_STATE_CTRL_LINK_TEST_CUSTOM_PATTERN);
+ /* 00111110000011111000001111100000 */
+ msm_dp_write_link(msm_dp_catalog, REG_DP_TEST_80BIT_CUSTOM_PATTERN_REG0,
+ 0x3E0F83E0);
+ /* 00001111100000111110000011111000 */
+ msm_dp_write_link(msm_dp_catalog, REG_DP_TEST_80BIT_CUSTOM_PATTERN_REG1,
+ 0x0F83E0F8);
+ /* 1111100000111110 */
+ msm_dp_write_link(msm_dp_catalog, REG_DP_TEST_80BIT_CUSTOM_PATTERN_REG2,
+ 0x0000F83E);
+ break;
+
+ case DP_PHY_TEST_PATTERN_CP2520:
+ value = msm_dp_read_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL);
+ value &= ~DP_MAINLINK_CTRL_SW_BYPASS_SCRAMBLER;
+ msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL, value);
+
+ value = DP_HBR2_ERM_PATTERN;
+ msm_dp_write_link(msm_dp_catalog, REG_DP_HBR2_COMPLIANCE_SCRAMBLER_RESET,
+ value);
+ value |= SCRAMBLER_RESET_COUNT_VALUE;
+ msm_dp_write_link(msm_dp_catalog, REG_DP_HBR2_COMPLIANCE_SCRAMBLER_RESET,
+ value);
+ msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_LEVELS,
+ DP_MAINLINK_SAFE_TO_EXIT_LEVEL_2);
+ msm_dp_write_link(msm_dp_catalog, REG_DP_STATE_CTRL,
+ DP_STATE_CTRL_LINK_SYMBOL_ERR_MEASURE);
+ value = msm_dp_read_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL);
+ value |= DP_MAINLINK_CTRL_ENABLE;
+ msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL, value);
+ break;
+
+ case DP_PHY_TEST_PATTERN_SEL_MASK:
+ msm_dp_write_link(msm_dp_catalog, REG_DP_MAINLINK_CTRL,
+ DP_MAINLINK_CTRL_ENABLE);
+ msm_dp_write_link(msm_dp_catalog, REG_DP_STATE_CTRL,
+ DP_STATE_CTRL_LINK_TRAINING_PATTERN4);
+ break;
+
+ default:
+ drm_dbg_dp(ctrl->drm_dev,
+ "No valid test pattern requested: %#x\n", pattern);
+ break;
+ }
+}
+
static bool msm_dp_ctrl_send_phy_test_pattern(struct msm_dp_ctrl_private *ctrl)
{
bool success = false;
@@ -1659,11 +1961,11 @@ static bool msm_dp_ctrl_send_phy_test_pattern(struct msm_dp_ctrl_private *ctrl)
DRM_ERROR("Failed to set v/p levels\n");
return false;
}
- msm_dp_catalog_ctrl_send_phy_pattern(ctrl->catalog, pattern_requested);
+ msm_dp_ctrl_send_phy_pattern(ctrl, pattern_requested);
msm_dp_ctrl_update_vx_px(ctrl);
msm_dp_link_send_test_response(ctrl->link);
- pattern_sent = msm_dp_catalog_ctrl_read_phy_pattern(ctrl->catalog);
+ pattern_sent = msm_dp_read_link(ctrl->catalog, REG_DP_MAINLINK_READY);
switch (pattern_sent) {
case MR_LINK_TRAINING1:
@@ -1942,6 +2244,63 @@ static int msm_dp_ctrl_link_retrain(struct msm_dp_ctrl_private *ctrl)
return msm_dp_ctrl_setup_main_link(ctrl, &training_step);
}
+static void msm_dp_ctrl_config_msa(struct msm_dp_ctrl_private *ctrl,
+ u32 rate, u32 stream_rate_khz,
+ bool is_ycbcr_420)
+{
+ u32 pixel_m, pixel_n;
+ u32 mvid, nvid, pixel_div = 0, dispcc_input_rate;
+ u32 const nvid_fixed = DP_LINK_CONSTANT_N_VALUE;
+ u32 const link_rate_hbr2 = 540000;
+ u32 const link_rate_hbr3 = 810000;
+ unsigned long den, num;
+
+ if (rate == link_rate_hbr3)
+ pixel_div = 6;
+ else if (rate == 162000 || rate == 270000)
+ pixel_div = 2;
+ else if (rate == link_rate_hbr2)
+ pixel_div = 4;
+ else
+ DRM_ERROR("Invalid pixel mux divider\n");
+
+ dispcc_input_rate = (rate * 10) / pixel_div;
+
+ rational_best_approximation(dispcc_input_rate, stream_rate_khz,
+ (unsigned long)(1 << 16) - 1,
+ (unsigned long)(1 << 16) - 1, &den, &num);
+
+ den = ~(den - num);
+ den = den & 0xFFFF;
+ pixel_m = num;
+ pixel_n = den;
+
+ mvid = (pixel_m & 0xFFFF) * 5;
+ nvid = (0xFFFF & (~pixel_n)) + (pixel_m & 0xFFFF);
+
+ if (nvid < nvid_fixed) {
+ u32 temp;
+
+ temp = (nvid_fixed / nvid) * nvid;
+ mvid = (nvid_fixed / nvid) * mvid;
+ nvid = temp;
+ }
+
+ if (is_ycbcr_420)
+ mvid /= 2;
+
+ if (link_rate_hbr2 == rate)
+ nvid *= 2;
+
+ if (link_rate_hbr3 == rate)
+ nvid *= 3;
+
+ drm_dbg_dp(ctrl->drm_dev, "mvid=0x%x, nvid=0x%x\n", mvid, nvid);
+ msm_dp_write_link(ctrl->catalog, REG_DP_SOFTWARE_MVID, mvid);
+ msm_dp_write_link(ctrl->catalog, REG_DP_SOFTWARE_NVID, nvid);
+ msm_dp_write_p0(ctrl->catalog, MMSS_DP_DSC_DTO, 0x0);
+}
+
int msm_dp_ctrl_on_stream(struct msm_dp_ctrl *msm_dp_ctrl, bool force_link_train)
{
int ret = 0;
@@ -2007,20 +2366,20 @@ int msm_dp_ctrl_on_stream(struct msm_dp_ctrl *msm_dp_ctrl, bool force_link_train
msm_dp_ctrl_configure_source_params(ctrl);
- msm_dp_catalog_ctrl_config_msa(ctrl->catalog,
+ msm_dp_ctrl_config_msa(ctrl,
ctrl->link->link_params.rate,
pixel_rate_orig,
ctrl->panel->msm_dp_mode.out_fmt_is_yuv_420);
msm_dp_ctrl_setup_tr_unit(ctrl);
- msm_dp_catalog_ctrl_state_ctrl(ctrl->catalog, DP_STATE_CTRL_SEND_VIDEO);
+ msm_dp_write_link(ctrl->catalog, REG_DP_STATE_CTRL, DP_STATE_CTRL_SEND_VIDEO);
ret = msm_dp_ctrl_wait4video_ready(ctrl);
if (ret)
return ret;
- mainlink_ready = msm_dp_catalog_ctrl_mainlink_ready(ctrl->catalog);
+ mainlink_ready = msm_dp_ctrl_mainlink_ready(ctrl);
drm_dbg_dp(ctrl->drm_dev,
"mainlink %s\n", mainlink_ready ? "READY" : "NOT READY");
@@ -2041,7 +2400,7 @@ void msm_dp_ctrl_off_link_stream(struct msm_dp_ctrl *msm_dp_ctrl)
/* set dongle to D3 (power off) mode */
msm_dp_link_psm_config(ctrl->link, &ctrl->panel->link_info, true);
- msm_dp_catalog_ctrl_mainlink_ctrl(ctrl->catalog, false);
+ msm_dp_ctrl_mainlink_disable(ctrl);
if (ctrl->stream_clks_on) {
clk_disable_unprepare(ctrl->pixel_clk);
@@ -2069,7 +2428,7 @@ void msm_dp_ctrl_off_link(struct msm_dp_ctrl *msm_dp_ctrl)
ctrl = container_of(msm_dp_ctrl, struct msm_dp_ctrl_private, msm_dp_ctrl);
phy = ctrl->phy;
- msm_dp_catalog_ctrl_mainlink_ctrl(ctrl->catalog, false);
+ msm_dp_ctrl_mainlink_disable(ctrl);
msm_dp_ctrl_link_clk_disable(&ctrl->msm_dp_ctrl);
@@ -2092,9 +2451,9 @@ void msm_dp_ctrl_off(struct msm_dp_ctrl *msm_dp_ctrl)
msm_dp_catalog_panel_disable_vsc_sdp(ctrl->catalog);
- msm_dp_catalog_ctrl_mainlink_ctrl(ctrl->catalog, false);
+ msm_dp_ctrl_mainlink_disable(ctrl);
- msm_dp_catalog_ctrl_reset(ctrl->catalog);
+ msm_dp_ctrl_reset(ctrl);
if (ctrl->stream_clks_on) {
clk_disable_unprepare(ctrl->pixel_clk);
--
2.39.5
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