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| author | Hai Li <hali@codeaurora.org> | 2015-08-13 17:45:50 -0400 |
|---|---|---|
| committer | Rob Clark <robdclark@gmail.com> | 2015-08-15 18:27:27 -0400 |
| commit | fae11c1106ad8304c09e3b9bf95dd6d03f4a5afa (patch) | |
| tree | 3f90c74d1b1f723c74a2e1665b79ef00bffc9bea /drivers/gpu/drm/msm | |
| parent | 29f034d776209042f7aaaf1518a66841c1d42233 (diff) | |
| download | lwn-fae11c1106ad8304c09e3b9bf95dd6d03f4a5afa.tar.gz lwn-fae11c1106ad8304c09e3b9bf95dd6d03f4a5afa.zip | |
drm/msm/dsi: Specify bitmask to set source PLL
The bit position to configure source PLL will change
on new types of PHYs. The caller should pass down
this information.
Signed-off-by: Hai Li <hali@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/msm')
| -rw-r--r-- | drivers/gpu/drm/msm/dsi/dsi_phy.c | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/gpu/drm/msm/dsi/dsi_phy.c b/drivers/gpu/drm/msm/dsi/dsi_phy.c index bd37e61123bf..799201e1a14f 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_phy.c +++ b/drivers/gpu/drm/msm/dsi/dsi_phy.c @@ -157,17 +157,21 @@ fail: return ret; } -static void dsi_phy_set_src_pll(struct msm_dsi_phy *phy, int pll_id, u32 reg) +static void dsi_phy_set_src_pll(struct msm_dsi_phy *phy, int pll_id, u32 reg, + u32 bit_mask) { int phy_id = phy->id; + u32 val; if ((phy_id >= DSI_MAX) || (pll_id >= DSI_MAX)) return; + val = dsi_phy_read(phy->base + reg); + if (phy->cfg->src_pll_truthtable[phy_id][pll_id]) - dsi_phy_write(phy->base + reg, 0x01); + dsi_phy_write(phy->base + reg, val | bit_mask); else - dsi_phy_write(phy->base + reg, 0x00); + dsi_phy_write(phy->base + reg, val & (~bit_mask)); } #define S_DIV_ROUND_UP(n, d) \ @@ -389,7 +393,8 @@ static int dsi_28nm_phy_enable(struct msm_dsi_phy *phy, int src_pll_id, dsi_phy_write(base + REG_DSI_28nm_PHY_CTRL_0, 0x5f); - dsi_phy_set_src_pll(phy, src_pll_id, REG_DSI_28nm_PHY_GLBL_TEST_CTRL); + dsi_phy_set_src_pll(phy, src_pll_id, REG_DSI_28nm_PHY_GLBL_TEST_CTRL, + DSI_28nm_PHY_GLBL_TEST_CTRL_BITCLK_HS_SEL); return 0; } @@ -451,7 +456,8 @@ static int dsi_20nm_phy_enable(struct msm_dsi_phy *phy, int src_pll_id, dsi_phy_write(base + REG_DSI_20nm_PHY_STRENGTH_0, 0xff); - dsi_phy_set_src_pll(phy, src_pll_id, REG_DSI_20nm_PHY_GLBL_TEST_CTRL); + dsi_phy_set_src_pll(phy, src_pll_id, REG_DSI_20nm_PHY_GLBL_TEST_CTRL, + DSI_20nm_PHY_GLBL_TEST_CTRL_BITCLK_HS_SEL); for (i = 0; i < 4; i++) { dsi_phy_write(base + REG_DSI_20nm_PHY_LN_CFG_3(i), |