diff options
author | Archit Taneja <architt@codeaurora.org> | 2016-09-14 09:53:59 +0300 |
---|---|---|
committer | Rob Clark <robdclark@gmail.com> | 2017-02-06 19:28:45 +0300 |
commit | 25c45d897016bd2c92820abfd59c800aaec7d62b (patch) | |
tree | 363f1e49a1878e53bd96878bf1a0e1874bfd0b82 | |
parent | 3a3ff88a0fc18ad45f0f5818a4f3de395da68d47 (diff) | |
download | linux-25c45d897016bd2c92820abfd59c800aaec7d62b.tar.xz |
drm/msm/dsi: Add a PHY op that initializes version specific stuff
Create an init() op for dsi_phy which sets up things specific to
a given DSI PHY.
The dsi_phy driver probe expects every DSI version to get a
"dsi_phy_regulator" mmio base. This isn't the case for 8x96.
Creating an init() op will allow us to accommodate such
differences.
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
-rw-r--r-- | drivers/gpu/drm/msm/dsi/phy/dsi_phy.c | 33 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/dsi/phy/dsi_phy.h | 2 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/dsi/phy/dsi_phy_20nm.c | 1 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c | 2 | ||||
-rw-r--r-- | drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c | 1 |
5 files changed, 30 insertions, 9 deletions
diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c index f39386ed75e4..03a354933606 100644 --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.c @@ -295,6 +295,24 @@ static int dsi_phy_get_id(struct msm_dsi_phy *phy) return -EINVAL; } +int msm_dsi_phy_init_common(struct msm_dsi_phy *phy) +{ + struct platform_device *pdev = phy->pdev; + int ret = 0; + + phy->reg_base = msm_ioremap(pdev, "dsi_phy_regulator", + "DSI_PHY_REG"); + if (IS_ERR(phy->reg_base)) { + dev_err(&pdev->dev, "%s: failed to map phy regulator base\n", + __func__); + ret = -ENOMEM; + goto fail; + } + +fail: + return ret; +} + static int dsi_phy_driver_probe(struct platform_device *pdev) { struct msm_dsi_phy *phy; @@ -331,15 +349,6 @@ static int dsi_phy_driver_probe(struct platform_device *pdev) goto fail; } - phy->reg_base = msm_ioremap(pdev, "dsi_phy_regulator", - "DSI_PHY_REG"); - if (IS_ERR(phy->reg_base)) { - dev_err(dev, "%s: failed to map phy regulator base\n", - __func__); - ret = -ENOMEM; - goto fail; - } - ret = dsi_phy_regulator_init(phy); if (ret) { dev_err(dev, "%s: failed to init regulator\n", __func__); @@ -353,6 +362,12 @@ static int dsi_phy_driver_probe(struct platform_device *pdev) goto fail; } + if (phy->cfg->ops.init) { + ret = phy->cfg->ops.init(phy); + if (ret) + goto fail; + } + /* PLL init will call into clk_register which requires * register access, so we need to enable power and ahb clock. */ diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h index f24a85439b94..b9d7d02260da 100644 --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy.h @@ -22,6 +22,7 @@ #define dsi_phy_write(offset, data) msm_writel((data), (offset)) struct msm_dsi_phy_ops { + int (*init) (struct msm_dsi_phy *phy); int (*enable)(struct msm_dsi_phy *phy, int src_pll_id, const unsigned long bit_rate, const unsigned long esc_rate); void (*disable)(struct msm_dsi_phy *phy); @@ -87,6 +88,7 @@ int msm_dsi_dphy_timing_calc(struct msm_dsi_dphy_timing *timing, const unsigned long bit_rate, const unsigned long esc_rate); void msm_dsi_phy_set_src_pll(struct msm_dsi_phy *phy, int pll_id, u32 reg, u32 bit_mask); +int msm_dsi_phy_init_common(struct msm_dsi_phy *phy); #endif /* __DSI_PHY_H__ */ diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_20nm.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_20nm.c index c757e2070cac..c4a7be5dee60 100644 --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_20nm.c +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_20nm.c @@ -145,6 +145,7 @@ const struct msm_dsi_phy_cfg dsi_phy_20nm_cfgs = { .ops = { .enable = dsi_20nm_phy_enable, .disable = dsi_20nm_phy_disable, + .init = msm_dsi_phy_init_common, }, .io_start = { 0xfd998300, 0xfd9a0300 }, .num_dsi_phy = 2, diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c index 63d7fba31380..ea740c5fb235 100644 --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm.c @@ -144,6 +144,7 @@ const struct msm_dsi_phy_cfg dsi_phy_28nm_hpm_cfgs = { .ops = { .enable = dsi_28nm_phy_enable, .disable = dsi_28nm_phy_disable, + .init = msm_dsi_phy_init_common, }, .io_start = { 0xfd922b00, 0xfd923100 }, .num_dsi_phy = 2, @@ -161,6 +162,7 @@ const struct msm_dsi_phy_cfg dsi_phy_28nm_lp_cfgs = { .ops = { .enable = dsi_28nm_phy_enable, .disable = dsi_28nm_phy_disable, + .init = msm_dsi_phy_init_common, }, .io_start = { 0x1a98500 }, .num_dsi_phy = 1, diff --git a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c index 7bdb9de54968..9aff0ba069cc 100644 --- a/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c +++ b/drivers/gpu/drm/msm/dsi/phy/dsi_phy_28nm_8960.c @@ -191,6 +191,7 @@ const struct msm_dsi_phy_cfg dsi_phy_28nm_8960_cfgs = { .ops = { .enable = dsi_28nm_phy_enable, .disable = dsi_28nm_phy_disable, + .init = msm_dsi_phy_init_common, }, .io_start = { 0x4700300, 0x5800300 }, .num_dsi_phy = 2, |