[PATCH v2 17/28] drm/msm/dsi: make save/restore_state phy-level functions
Dmitry Baryshkov
dmitry.baryshkov at linaro.org
Wed Mar 24 15:18:35 UTC 2021
Morph msm_dsi_pll_save/restore_state() into msm_dsi_phy_save/restore_state(),
thus removing last bits of knowledge about msm_dsi_pll from dsi_manager.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
---
drivers/gpu/drm/msm/dsi/dsi.h | 18 ++---------
drivers/gpu/drm/msm/dsi/dsi_manager.c | 6 ++--
drivers/gpu/drm/msm/dsi/phy/dsi_phy.c | 35 +++++++++++++++-------
drivers/gpu/drm/msm/dsi/phy/dsi_phy.h | 11 +++++++
drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c | 2 +-
drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c | 2 +-
drivers/gpu/drm/msm/dsi/phy/dsi_pll.c | 26 ----------------
drivers/gpu/drm/msm/dsi/phy/dsi_pll.h | 11 -------
8 files changed, 42 insertions(+), 69 deletions(-)
diff --git a/drivers/gpu/drm/msm/dsi/dsi.h b/drivers/gpu/drm/msm/dsi/dsi.h
index 1357fa15f320..5c32ee2b3605 100644
--- a/drivers/gpu/drm/msm/dsi/dsi.h
+++ b/drivers/gpu/drm/msm/dsi/dsi.h
@@ -92,21 +92,6 @@ static inline bool msm_dsi_device_connected(struct msm_dsi *msm_dsi)
struct drm_encoder *msm_dsi_get_encoder(struct msm_dsi *msm_dsi);
-/* dsi pll */
-struct msm_dsi_pll;
-#ifdef CONFIG_DRM_MSM_DSI_PLL
-void msm_dsi_pll_save_state(struct msm_dsi_pll *pll);
-int msm_dsi_pll_restore_state(struct msm_dsi_pll *pll);
-#else
-static inline void msm_dsi_pll_save_state(struct msm_dsi_pll *pll)
-{
-}
-static inline int msm_dsi_pll_restore_state(struct msm_dsi_pll *pll)
-{
- return 0;
-}
-#endif
-
/* dsi host */
struct msm_dsi_host;
int msm_dsi_host_xfer_prepare(struct mipi_dsi_host *host,
@@ -180,9 +165,10 @@ int msm_dsi_phy_enable(struct msm_dsi_phy *phy, int src_pll_id,
void msm_dsi_phy_disable(struct msm_dsi_phy *phy);
void msm_dsi_phy_get_shared_timings(struct msm_dsi_phy *phy,
struct msm_dsi_phy_shared_timings *shared_timing);
-struct msm_dsi_pll *msm_dsi_phy_get_pll(struct msm_dsi_phy *phy);
void msm_dsi_phy_set_usecase(struct msm_dsi_phy *phy,
enum msm_dsi_phy_usecase uc);
+void msm_dsi_phy_save_state(struct msm_dsi_phy *phy);
+int msm_dsi_phy_restore_state(struct msm_dsi_phy *phy);
#endif /* __DSI_CONNECTOR_H__ */
diff --git a/drivers/gpu/drm/msm/dsi/dsi_manager.c b/drivers/gpu/drm/msm/dsi/dsi_manager.c
index 6b65d86d116a..2976b09a881d 100644
--- a/drivers/gpu/drm/msm/dsi/dsi_manager.c
+++ b/drivers/gpu/drm/msm/dsi/dsi_manager.c
@@ -493,7 +493,6 @@ static void dsi_mgr_bridge_post_disable(struct drm_bridge *bridge)
struct msm_dsi *msm_dsi1 = dsi_mgr_get_dsi(DSI_1);
struct mipi_dsi_host *host = msm_dsi->host;
struct drm_panel *panel = msm_dsi->panel;
- struct msm_dsi_pll *src_pll;
bool is_dual_dsi = IS_DUAL_DSI();
int ret;
@@ -527,9 +526,8 @@ static void dsi_mgr_bridge_post_disable(struct drm_bridge *bridge)
id, ret);
}
- /* Save PLL status if it is a clock source */
- src_pll = msm_dsi_phy_get_pll(msm_dsi->phy);
- msm_dsi_pll_save_state(src_pll);
+ /* Save PHY status if it is a clock source */
+ msm_dsi_phy_save_state(msm_dsi->phy);
ret = msm_dsi_host_power_off(host);
if (ret)
diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
index 74a4e2daade8..7d23371a83f6 100644
--- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
+++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c
@@ -799,9 +799,9 @@ int msm_dsi_phy_enable(struct msm_dsi_phy *phy, int src_pll_id,
* source.
*/
if (phy->usecase != MSM_DSI_PHY_SLAVE) {
- ret = msm_dsi_pll_restore_state(phy->pll);
+ ret = msm_dsi_phy_restore_state(phy);
if (ret) {
- DRM_DEV_ERROR(dev, "%s: failed to restore pll state, %d\n",
+ DRM_DEV_ERROR(dev, "%s: failed to restore phy state, %d\n",
__func__, ret);
goto pll_restor_fail;
}
@@ -838,17 +838,32 @@ void msm_dsi_phy_get_shared_timings(struct msm_dsi_phy *phy,
sizeof(*shared_timings));
}
-struct msm_dsi_pll *msm_dsi_phy_get_pll(struct msm_dsi_phy *phy)
-{
- if (!phy)
- return NULL;
-
- return phy->pll;
-}
-
void msm_dsi_phy_set_usecase(struct msm_dsi_phy *phy,
enum msm_dsi_phy_usecase uc)
{
if (phy)
phy->usecase = uc;
}
+
+void msm_dsi_phy_save_state(struct msm_dsi_phy *phy)
+{
+ if (phy->cfg->pll_ops.save_state) {
+ phy->cfg->pll_ops.save_state(phy->pll);
+ phy->pll->state_saved = true;
+ }
+}
+
+int msm_dsi_phy_restore_state(struct msm_dsi_phy *phy)
+{
+ int ret;
+
+ if (phy->cfg->pll_ops.restore_state && phy->pll->state_saved) {
+ ret = phy->cfg->pll_ops.restore_state(phy->pll);
+ if (ret)
+ return ret;
+
+ phy->pll->state_saved = false;
+ }
+
+ return 0;
+}
diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h
index 2c5196844ba9..8133732e0c7f 100644
--- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h
+++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h
@@ -6,6 +6,7 @@
#ifndef __DSI_PHY_H__
#define __DSI_PHY_H__
+#include <linux/clk-provider.h>
#include <linux/regulator/consumer.h>
#include "dsi.h"
@@ -13,6 +14,16 @@
#define dsi_phy_read(offset) msm_readl((offset))
#define dsi_phy_write(offset, data) msm_writel((data), (offset))
+struct msm_dsi_pll {
+ struct clk_hw clk_hw;
+ bool pll_on;
+ bool state_saved;
+
+ const struct msm_dsi_phy_cfg *cfg;
+};
+
+#define hw_clk_to_pll(x) container_of(x, struct msm_dsi_pll, clk_hw)
+
struct msm_dsi_phy_ops {
int (*pll_init)(struct msm_dsi_phy *phy);
int (*enable)(struct msm_dsi_phy *phy, int src_pll_id,
diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c
index 6300b92c65eb..e0df12a841b2 100644
--- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c
+++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_10nm.c
@@ -782,7 +782,7 @@ static int dsi_pll_10nm_init(struct msm_dsi_phy *phy)
phy->pll = pll;
/* TODO: Remove this when we have proper display handover support */
- msm_dsi_pll_save_state(pll);
+ msm_dsi_phy_save_state(phy);
return 0;
}
diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c
index c482e51d1bee..e6c8040e1bd3 100644
--- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c
+++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_7nm.c
@@ -807,7 +807,7 @@ static int dsi_pll_7nm_init(struct msm_dsi_phy *phy)
phy->pll = pll;
/* TODO: Remove this when we have proper display handover support */
- msm_dsi_pll_save_state(pll);
+ msm_dsi_phy_save_state(phy);
return 0;
}
diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_pll.c b/drivers/gpu/drm/msm/dsi/phy/dsi_pll.c
index 96de79b94f1b..652c2d6bfeec 100644
--- a/drivers/gpu/drm/msm/dsi/phy/dsi_pll.c
+++ b/drivers/gpu/drm/msm/dsi/phy/dsi_pll.c
@@ -56,29 +56,3 @@ void msm_dsi_pll_helper_clk_unprepare(struct clk_hw *hw)
pll->pll_on = false;
}
-
-/*
- * DSI PLL API
- */
-void msm_dsi_pll_save_state(struct msm_dsi_pll *pll)
-{
- if (pll->cfg->pll_ops.save_state) {
- pll->cfg->pll_ops.save_state(pll);
- pll->state_saved = true;
- }
-}
-
-int msm_dsi_pll_restore_state(struct msm_dsi_pll *pll)
-{
- int ret;
-
- if (pll->cfg->pll_ops.restore_state && pll->state_saved) {
- ret = pll->cfg->pll_ops.restore_state(pll);
- if (ret)
- return ret;
-
- pll->state_saved = false;
- }
-
- return 0;
-}
diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_pll.h b/drivers/gpu/drm/msm/dsi/phy/dsi_pll.h
index c94f079b8275..eca13cf67c21 100644
--- a/drivers/gpu/drm/msm/dsi/phy/dsi_pll.h
+++ b/drivers/gpu/drm/msm/dsi/phy/dsi_pll.h
@@ -6,21 +6,10 @@
#ifndef __DSI_PLL_H__
#define __DSI_PLL_H__
-#include <linux/clk-provider.h>
#include <linux/delay.h>
#include "dsi.h"
-struct msm_dsi_pll {
- struct clk_hw clk_hw;
- bool pll_on;
- bool state_saved;
-
- const struct msm_dsi_phy_cfg *cfg;
-};
-
-#define hw_clk_to_pll(x) container_of(x, struct msm_dsi_pll, clk_hw)
-
static inline void pll_write(void __iomem *reg, u32 data)
{
msm_writel(data, reg);
--
2.30.2
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