lkml.org 
[lkml]   [2019]   [Dec]   [24]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH v2 05/11] drm/rockchip: lvds: Change platform data
Date
Prepare the introduction of PX30 support by using
drm_encoder_helper_funcs as platform data instead of multiple register
names which are specific to rk3288 and not generic to all Rockchip
IPs. This way adding support for a new flavor of a similar IP will be
a matter of adding the relevant helper funcs.

Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
---
drivers/gpu/drm/rockchip/rockchip_lvds.c | 32 ++++++++----------------
drivers/gpu/drm/rockchip/rockchip_lvds.h | 3 +++
2 files changed, 14 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/rockchip/rockchip_lvds.c b/drivers/gpu/drm/rockchip/rockchip_lvds.c
index 3c08e50923ae..271e126476e1 100644
--- a/drivers/gpu/drm/rockchip/rockchip_lvds.c
+++ b/drivers/gpu/drm/rockchip/rockchip_lvds.c
@@ -38,16 +38,10 @@

/**
* rockchip_lvds_soc_data - rockchip lvds Soc private data
- * @ch1_offset: lvds channel 1 registe offset
- * grf_soc_con6: general registe offset for LVDS contrl
- * grf_soc_con7: general registe offset for LVDS contrl
- * has_vop_sel: to indicate whether need to choose from different VOP.
+ * @helper_funcs: LVDS connector helper functions
*/
struct rockchip_lvds_soc_data {
- u32 ch1_offset;
- int grf_soc_con6;
- int grf_soc_con7;
- bool has_vop_sel;
+ const struct drm_encoder_helper_funcs *helper_funcs;
};

struct rockchip_lvds {
@@ -72,7 +66,7 @@ static inline void rk3288_writel(struct rockchip_lvds *lvds, u32 offset,
writel_relaxed(val, lvds->regs + offset);
if (lvds->output == DISPLAY_OUTPUT_LVDS)
return;
- writel_relaxed(val, lvds->regs + offset + lvds->soc_data->ch1_offset);
+ writel_relaxed(val, lvds->regs + offset + RK3288_LVDS_CH1_OFFSET);
}

static inline int rockchip_lvds_name_to_format(const char *s)
@@ -187,7 +181,7 @@ static void rk3288_lvds_poweroff(struct rockchip_lvds *lvds)
RK3288_LVDS_CFG_REGC_PLL_ENABLE);
val = LVDS_DUAL | LVDS_TTL_EN | LVDS_CH0_EN | LVDS_CH1_EN | LVDS_PWRDN;
val |= val << 16;
- ret = regmap_write(lvds->grf, lvds->soc_data->grf_soc_con7, val);
+ ret = regmap_write(lvds->grf, RK3288_LVDS_GRF_SOC_CON7, val);
if (ret != 0)
DRM_DEV_ERROR(lvds->dev, "Could not write to GRF: %d\n", ret);

@@ -241,7 +235,7 @@ static void rk3288_lvds_grf_config(struct drm_encoder *encoder,

val |= (pin_dclk << 8) | (pin_hsync << 9);
val |= (0xffff << 16);
- ret = regmap_write(lvds->grf, lvds->soc_data->grf_soc_con7, val);
+ ret = regmap_write(lvds->grf, RK3288_LVDS_GRF_SOC_CON7, val);
if (ret != 0) {
DRM_DEV_ERROR(lvds->dev, "Could not write to GRF: %d\n", ret);
return;
@@ -254,9 +248,6 @@ static int rk3288_lvds_set_vop_source(struct rockchip_lvds *lvds,
u32 val;
int ret;

- if (!lvds->soc_data->has_vop_sel)
- return 0;
-
ret = drm_of_encoder_active_endpoint_id(lvds->dev->of_node, encoder);
if (ret < 0)
return ret;
@@ -265,7 +256,7 @@ static int rk3288_lvds_set_vop_source(struct rockchip_lvds *lvds,
if (ret)
val |= RK3288_LVDS_SOC_CON6_SEL_VOP_LIT;

- ret = regmap_write(lvds->grf, lvds->soc_data->grf_soc_con6, val);
+ ret = regmap_write(lvds->grf, RK3288_LVDS_GRF_SOC_CON6, val);
if (ret < 0)
return ret;

@@ -323,10 +314,7 @@ static const struct drm_encoder_funcs rockchip_lvds_encoder_funcs = {
};

static const struct rockchip_lvds_soc_data rk3288_lvds_data = {
- .ch1_offset = 0x100,
- .grf_soc_con6 = 0x025c,
- .grf_soc_con7 = 0x0260,
- .has_vop_sel = true,
+ .helper_funcs = &rk3288_lvds_encoder_helper_funcs,
};

static const struct of_device_id rockchip_lvds_dt_ids[] = {
@@ -417,7 +405,7 @@ static int rockchip_lvds_bind(struct device *dev, struct device *master,
goto err_put_remote;
}

- drm_encoder_helper_add(encoder, &rk3288_lvds_encoder_helper_funcs);
+ drm_encoder_helper_add(encoder, lvds->soc_data->helper_funcs);

if (lvds->panel) {
connector = &lvds->connector;
@@ -478,8 +466,10 @@ static void rockchip_lvds_unbind(struct device *dev, struct device *master,
void *data)
{
struct rockchip_lvds *lvds = dev_get_drvdata(dev);
+ const struct drm_encoder_helper_funcs *encoder_funcs;

- rk3288_lvds_encoder_disable(&lvds->encoder);
+ encoder_funcs = lvds->soc_data->helper_funcs;
+ encoder_funcs->disable(&lvds->encoder);
if (lvds->panel)
drm_panel_detach(lvds->panel);
pm_runtime_disable(dev);
diff --git a/drivers/gpu/drm/rockchip/rockchip_lvds.h b/drivers/gpu/drm/rockchip/rockchip_lvds.h
index 1387bcbc4bc0..e41e9ab3c306 100644
--- a/drivers/gpu/drm/rockchip/rockchip_lvds.h
+++ b/drivers/gpu/drm/rockchip/rockchip_lvds.h
@@ -72,6 +72,9 @@
#define RK3288_LVDS_CFG_REG21_TX_DISABLE 0x00
#define RK3288_LVDS_CH1_OFFSET 0x100

+#define RK3288_LVDS_GRF_SOC_CON6 0x025C
+#define RK3288_LVDS_GRF_SOC_CON7 0x0260
+
/* fbdiv value is split over 2 registers, with bit8 in reg2 */
#define RK3288_LVDS_PLL_FBDIV_REG2(_fbd) \
(_fbd & BIT(8) ? RK3288_LVDS_CH0_REG2_PLL_FBDIV8 : 0)
--
2.20.1
\
 
 \ /
  Last update: 2019-12-24 15:40    [W:0.089 / U:1.604 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site