[Intel-gfx] [PATCH v5 45/46] drm: i915: switch to the atomic PWM API

[Boris Brezillon]

pwm_config/enable/disable() have been deprecated and should be replaced
by pwm_apply_state().

Signed-off-by: Boris Brezillon <boris.brezillon at free-electrons.com>
---
 drivers/gpu/drm/i915/intel_panel.c | 39 +++++++++++++++++++++++++-------------
 1 file changed, 26 insertions(+), 13 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c
index 21ee647..b86bd20 100644
--- a/drivers/gpu/drm/i915/intel_panel.c
+++ b/drivers/gpu/drm/i915/intel_panel.c
@@ -538,10 +538,10 @@ static u32 bxt_get_backlight(struct intel_connector *connector)
 static u32 pwm_get_backlight(struct intel_connector *connector)
 {
 	struct intel_panel *panel = &connector->panel;
-	int duty_ns;
+	struct pwm_state pstate;
 
-	duty_ns = pwm_get_duty_cycle(panel->backlight.pwm);
-	return DIV_ROUND_UP(duty_ns * 100, CRC_PMIC_PWM_PERIOD_NS);
+	pwm_get_state(panel->backlight.pwm, &pstate);
+	return DIV_ROUND_UP(pstate.duty_cycle * 100, CRC_PMIC_PWM_PERIOD_NS);
 }
 
 static u32 intel_panel_get_backlight(struct intel_connector *connector)
@@ -630,9 +630,12 @@ static void bxt_set_backlight(struct intel_connector *connector, u32 level)
 static void pwm_set_backlight(struct intel_connector *connector, u32 level)
 {
 	struct intel_panel *panel = &connector->panel;
-	int duty_ns = DIV_ROUND_UP(level * CRC_PMIC_PWM_PERIOD_NS, 100);
+	struct pwm_state pstate;
 
-	pwm_config(panel->backlight.pwm, duty_ns, CRC_PMIC_PWM_PERIOD_NS);
+	pwm_get_state(panel->backlight.pwm, &pstate);
+	pstate.duty_cycle = DIV_ROUND_UP(level * CRC_PMIC_PWM_PERIOD_NS, 100);
+	pstate.period = CRC_PMIC_PWM_PERIOD_NS;
+	pwm_apply_state(panel->backlight.pwm, &pstate);
 }
 
 static void
@@ -801,11 +804,15 @@ static void bxt_disable_backlight(struct intel_connector *connector)
 static void pwm_disable_backlight(struct intel_connector *connector)
 {
 	struct intel_panel *panel = &connector->panel;
+	struct pwm_state pstate;
 
 	/* Disable the backlight */
-	pwm_config(panel->backlight.pwm, 0, CRC_PMIC_PWM_PERIOD_NS);
+	pwm_get_state(panel->backlight.pwm, &pstate);
+	pstate.duty_cycle = 0;
+	pwm_apply_state(panel->backlight.pwm, &pstate);
 	usleep_range(2000, 3000);
-	pwm_disable(panel->backlight.pwm);
+	pstate.enabled = false;
+	pwm_apply_state(panel->backlight.pwm, &pstate);
 }
 
 void intel_panel_disable_backlight(struct intel_connector *connector)
@@ -1068,8 +1075,11 @@ static void bxt_enable_backlight(struct intel_connector *connector)
 static void pwm_enable_backlight(struct intel_connector *connector)
 {
 	struct intel_panel *panel = &connector->panel;
+	struct pwm_state pstate;
 
-	pwm_enable(panel->backlight.pwm);
+	pwm_get_state(panel->backlight.pwm, &pstate);
+	pstate.enabled = true;
+	pwm_apply_state(panel->backlight.pwm, &pstate);
 	intel_panel_actually_set_backlight(connector, panel->backlight.level);
 }
 
@@ -1630,6 +1640,7 @@ static int pwm_setup_backlight(struct intel_connector *connector,
 {
 	struct drm_device *dev = connector->base.dev;
 	struct intel_panel *panel = &connector->panel;
+	struct pwm_state pstate;
 	int retval;
 
 	/* Get the PWM chip for backlight control */
@@ -1640,8 +1651,10 @@ static int pwm_setup_backlight(struct intel_connector *connector,
 		return -ENODEV;
 	}
 
-	retval = pwm_config(panel->backlight.pwm, CRC_PMIC_PWM_PERIOD_NS,
-			    CRC_PMIC_PWM_PERIOD_NS);
+	pwm_get_state(panel->backlight.pwm, &pstate);
+	pstate.period = CRC_PMIC_PWM_PERIOD_NS;
+	pstate.duty_cycle = CRC_PMIC_PWM_PERIOD_NS;
+	retval = pwm_apply_state(panel->backlight.pwm, &pstate);
 	if (retval < 0) {
 		DRM_ERROR("Failed to configure the pwm chip\n");
 		pwm_put(panel->backlight.pwm);
@@ -1651,9 +1664,9 @@ static int pwm_setup_backlight(struct intel_connector *connector,
 
 	panel->backlight.min = 0; /* 0% */
 	panel->backlight.max = 100; /* 100% */
-	panel->backlight.level = DIV_ROUND_UP(
-				 pwm_get_duty_cycle(panel->backlight.pwm) * 100,
-				 CRC_PMIC_PWM_PERIOD_NS);
+	pwm_get_state(panel->backlight.pwm, &pstate);
+	panel->backlight.level = DIV_ROUND_UP(pstate.duty_cycle * 100,
+					      pstate.period);
 	panel->backlight.enabled = panel->backlight.level != 0;
 
 	return 0;
-- 
2.5.0