Message ID | 20230804-tc358768-v1-6-1afd44b7826b@ideasonboard.com (mailing list archive) |
---|---|
State | New, archived |
Headers | show |
Series | drm/bridge: tc358768: Fixes and timings improvements | expand |
On 04/08/2023 13:44, Tomi Valkeinen wrote: > Simplify the code by capturing the priv->dev value to dev variable, and > use it. Reviewed-by: Peter Ujfalusi <peter.ujfalusi@gmail.com> > > Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> > --- > drivers/gpu/drm/bridge/tc358768.c | 41 ++++++++++++++++++++------------------- > 1 file changed, 21 insertions(+), 20 deletions(-) > > diff --git a/drivers/gpu/drm/bridge/tc358768.c b/drivers/gpu/drm/bridge/tc358768.c > index 0ef51d04bb21..3266c08d9bf1 100644 > --- a/drivers/gpu/drm/bridge/tc358768.c > +++ b/drivers/gpu/drm/bridge/tc358768.c > @@ -651,9 +651,10 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge) > const u32 internal_delay = 40; > int ret, i; > struct videomode vm; > + struct device *dev = priv->dev; > > if (mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS) { > - dev_warn_once(priv->dev, "Non-continuous mode unimplemented, falling back to continuous\n"); > + dev_warn_once(dev, "Non-continuous mode unimplemented, falling back to continuous\n"); > mode_flags &= ~MIPI_DSI_CLOCK_NON_CONTINUOUS; > } > > @@ -661,7 +662,7 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge) > > ret = tc358768_sw_reset(priv); > if (ret) { > - dev_err(priv->dev, "Software reset failed: %d\n", ret); > + dev_err(dev, "Software reset failed: %d\n", ret); > tc358768_hw_disable(priv); > return; > } > @@ -669,7 +670,7 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge) > mode = &bridge->encoder->crtc->state->adjusted_mode; > ret = tc358768_setup_pll(priv, mode); > if (ret) { > - dev_err(priv->dev, "PLL setup failed: %d\n", ret); > + dev_err(dev, "PLL setup failed: %d\n", ret); > tc358768_hw_disable(priv); > return; > } > @@ -709,7 +710,7 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge) > data_type = MIPI_DSI_PACKED_PIXEL_STREAM_16; > break; > default: > - dev_err(priv->dev, "Invalid data format (%u)\n", > + dev_err(dev, "Invalid data format (%u)\n", > dsi_dev->format); > tc358768_hw_disable(priv); > return; > @@ -733,65 +734,65 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge) > dsibclk); > dsiclk_nsk = (u32)div_u64((u64)1000000000 * TC358768_PRECISION, dsiclk); > ui_nsk = dsiclk_nsk / 2; > - dev_dbg(priv->dev, "dsiclk_nsk: %u\n", dsiclk_nsk); > - dev_dbg(priv->dev, "ui_nsk: %u\n", ui_nsk); > - dev_dbg(priv->dev, "dsibclk_nsk: %u\n", dsibclk_nsk); > + dev_dbg(dev, "dsiclk_nsk: %u\n", dsiclk_nsk); > + dev_dbg(dev, "ui_nsk: %u\n", ui_nsk); > + dev_dbg(dev, "dsibclk_nsk: %u\n", dsibclk_nsk); > > /* LP11 > 100us for D-PHY Rx Init */ > val = tc358768_ns_to_cnt(100 * 1000, dsibclk_nsk) - 1; > - dev_dbg(priv->dev, "LINEINITCNT: %u\n", val); > + dev_dbg(dev, "LINEINITCNT: %u\n", val); > tc358768_write(priv, TC358768_LINEINITCNT, val); > > /* LPTimeCnt > 50ns */ > val = tc358768_ns_to_cnt(50, dsibclk_nsk) - 1; > lptxcnt = val; > - dev_dbg(priv->dev, "LPTXTIMECNT: %u\n", val); > + dev_dbg(dev, "LPTXTIMECNT: %u\n", val); > tc358768_write(priv, TC358768_LPTXTIMECNT, val); > > /* 38ns < TCLK_PREPARE < 95ns */ > val = tc358768_ns_to_cnt(65, dsibclk_nsk) - 1; > - dev_dbg(priv->dev, "TCLK_PREPARECNT %u\n", val); > + dev_dbg(dev, "TCLK_PREPARECNT %u\n", val); > /* TCLK_PREPARE + TCLK_ZERO > 300ns */ > val2 = tc358768_ns_to_cnt(300 - tc358768_to_ns(2 * ui_nsk), > dsibclk_nsk) - 2; > - dev_dbg(priv->dev, "TCLK_ZEROCNT %u\n", val2); > + dev_dbg(dev, "TCLK_ZEROCNT %u\n", val2); > val |= val2 << 8; > tc358768_write(priv, TC358768_TCLK_HEADERCNT, val); > > /* TCLK_TRAIL > 60ns AND TEOT <= 105 ns + 12*UI */ > raw_val = tc358768_ns_to_cnt(60 + tc358768_to_ns(2 * ui_nsk), dsibclk_nsk) - 5; > val = clamp(raw_val, 0, 127); > - dev_dbg(priv->dev, "TCLK_TRAILCNT: %u\n", val); > + dev_dbg(dev, "TCLK_TRAILCNT: %u\n", val); > tc358768_write(priv, TC358768_TCLK_TRAILCNT, val); > > /* 40ns + 4*UI < THS_PREPARE < 85ns + 6*UI */ > val = 50 + tc358768_to_ns(4 * ui_nsk); > val = tc358768_ns_to_cnt(val, dsibclk_nsk) - 1; > - dev_dbg(priv->dev, "THS_PREPARECNT %u\n", val); > + dev_dbg(dev, "THS_PREPARECNT %u\n", val); > /* THS_PREPARE + THS_ZERO > 145ns + 10*UI */ > raw_val = tc358768_ns_to_cnt(145 - tc358768_to_ns(3 * ui_nsk), dsibclk_nsk) - 10; > val2 = clamp(raw_val, 0, 127); > - dev_dbg(priv->dev, "THS_ZEROCNT %u\n", val2); > + dev_dbg(dev, "THS_ZEROCNT %u\n", val2); > val |= val2 << 8; > tc358768_write(priv, TC358768_THS_HEADERCNT, val); > > /* TWAKEUP > 1ms in lptxcnt steps */ > val = tc358768_ns_to_cnt(1020000, dsibclk_nsk); > val = val / (lptxcnt + 1) - 1; > - dev_dbg(priv->dev, "TWAKEUP: %u\n", val); > + dev_dbg(dev, "TWAKEUP: %u\n", val); > tc358768_write(priv, TC358768_TWAKEUP, val); > > /* TCLK_POSTCNT > 60ns + 52*UI */ > val = tc358768_ns_to_cnt(60 + tc358768_to_ns(52 * ui_nsk), > dsibclk_nsk) - 3; > - dev_dbg(priv->dev, "TCLK_POSTCNT: %u\n", val); > + dev_dbg(dev, "TCLK_POSTCNT: %u\n", val); > tc358768_write(priv, TC358768_TCLK_POSTCNT, val); > > /* max(60ns + 4*UI, 8*UI) < THS_TRAILCNT < 105ns + 12*UI */ > raw_val = tc358768_ns_to_cnt(60 + tc358768_to_ns(18 * ui_nsk), > dsibclk_nsk) - 4; > val = clamp(raw_val, 0, 15); > - dev_dbg(priv->dev, "THS_TRAILCNT: %u\n", val); > + dev_dbg(dev, "THS_TRAILCNT: %u\n", val); > tc358768_write(priv, TC358768_THS_TRAILCNT, val); > > val = BIT(0); > @@ -805,10 +806,10 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge) > /* TXTAGOCNT[26:16] RXTASURECNT[10:0] */ > val = tc358768_to_ns((lptxcnt + 1) * dsibclk_nsk * 4); > val = tc358768_ns_to_cnt(val, dsibclk_nsk) / 4 - 1; > - dev_dbg(priv->dev, "TXTAGOCNT: %u\n", val); > + dev_dbg(dev, "TXTAGOCNT: %u\n", val); > val2 = tc358768_ns_to_cnt(tc358768_to_ns((lptxcnt + 1) * dsibclk_nsk), > dsibclk_nsk) - 2; > - dev_dbg(priv->dev, "RXTASURECNT: %u\n", val2); > + dev_dbg(dev, "RXTASURECNT: %u\n", val2); > val = val << 16 | val2; > tc358768_write(priv, TC358768_BTACNTRL1, val); > > @@ -902,7 +903,7 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge) > > ret = tc358768_clear_error(priv); > if (ret) { > - dev_err(priv->dev, "Bridge pre_enable failed: %d\n", ret); > + dev_err(dev, "Bridge pre_enable failed: %d\n", ret); > tc358768_bridge_disable(bridge); > tc358768_bridge_post_disable(bridge); > } >
diff --git a/drivers/gpu/drm/bridge/tc358768.c b/drivers/gpu/drm/bridge/tc358768.c index 0ef51d04bb21..3266c08d9bf1 100644 --- a/drivers/gpu/drm/bridge/tc358768.c +++ b/drivers/gpu/drm/bridge/tc358768.c @@ -651,9 +651,10 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge) const u32 internal_delay = 40; int ret, i; struct videomode vm; + struct device *dev = priv->dev; if (mode_flags & MIPI_DSI_CLOCK_NON_CONTINUOUS) { - dev_warn_once(priv->dev, "Non-continuous mode unimplemented, falling back to continuous\n"); + dev_warn_once(dev, "Non-continuous mode unimplemented, falling back to continuous\n"); mode_flags &= ~MIPI_DSI_CLOCK_NON_CONTINUOUS; } @@ -661,7 +662,7 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge) ret = tc358768_sw_reset(priv); if (ret) { - dev_err(priv->dev, "Software reset failed: %d\n", ret); + dev_err(dev, "Software reset failed: %d\n", ret); tc358768_hw_disable(priv); return; } @@ -669,7 +670,7 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge) mode = &bridge->encoder->crtc->state->adjusted_mode; ret = tc358768_setup_pll(priv, mode); if (ret) { - dev_err(priv->dev, "PLL setup failed: %d\n", ret); + dev_err(dev, "PLL setup failed: %d\n", ret); tc358768_hw_disable(priv); return; } @@ -709,7 +710,7 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge) data_type = MIPI_DSI_PACKED_PIXEL_STREAM_16; break; default: - dev_err(priv->dev, "Invalid data format (%u)\n", + dev_err(dev, "Invalid data format (%u)\n", dsi_dev->format); tc358768_hw_disable(priv); return; @@ -733,65 +734,65 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge) dsibclk); dsiclk_nsk = (u32)div_u64((u64)1000000000 * TC358768_PRECISION, dsiclk); ui_nsk = dsiclk_nsk / 2; - dev_dbg(priv->dev, "dsiclk_nsk: %u\n", dsiclk_nsk); - dev_dbg(priv->dev, "ui_nsk: %u\n", ui_nsk); - dev_dbg(priv->dev, "dsibclk_nsk: %u\n", dsibclk_nsk); + dev_dbg(dev, "dsiclk_nsk: %u\n", dsiclk_nsk); + dev_dbg(dev, "ui_nsk: %u\n", ui_nsk); + dev_dbg(dev, "dsibclk_nsk: %u\n", dsibclk_nsk); /* LP11 > 100us for D-PHY Rx Init */ val = tc358768_ns_to_cnt(100 * 1000, dsibclk_nsk) - 1; - dev_dbg(priv->dev, "LINEINITCNT: %u\n", val); + dev_dbg(dev, "LINEINITCNT: %u\n", val); tc358768_write(priv, TC358768_LINEINITCNT, val); /* LPTimeCnt > 50ns */ val = tc358768_ns_to_cnt(50, dsibclk_nsk) - 1; lptxcnt = val; - dev_dbg(priv->dev, "LPTXTIMECNT: %u\n", val); + dev_dbg(dev, "LPTXTIMECNT: %u\n", val); tc358768_write(priv, TC358768_LPTXTIMECNT, val); /* 38ns < TCLK_PREPARE < 95ns */ val = tc358768_ns_to_cnt(65, dsibclk_nsk) - 1; - dev_dbg(priv->dev, "TCLK_PREPARECNT %u\n", val); + dev_dbg(dev, "TCLK_PREPARECNT %u\n", val); /* TCLK_PREPARE + TCLK_ZERO > 300ns */ val2 = tc358768_ns_to_cnt(300 - tc358768_to_ns(2 * ui_nsk), dsibclk_nsk) - 2; - dev_dbg(priv->dev, "TCLK_ZEROCNT %u\n", val2); + dev_dbg(dev, "TCLK_ZEROCNT %u\n", val2); val |= val2 << 8; tc358768_write(priv, TC358768_TCLK_HEADERCNT, val); /* TCLK_TRAIL > 60ns AND TEOT <= 105 ns + 12*UI */ raw_val = tc358768_ns_to_cnt(60 + tc358768_to_ns(2 * ui_nsk), dsibclk_nsk) - 5; val = clamp(raw_val, 0, 127); - dev_dbg(priv->dev, "TCLK_TRAILCNT: %u\n", val); + dev_dbg(dev, "TCLK_TRAILCNT: %u\n", val); tc358768_write(priv, TC358768_TCLK_TRAILCNT, val); /* 40ns + 4*UI < THS_PREPARE < 85ns + 6*UI */ val = 50 + tc358768_to_ns(4 * ui_nsk); val = tc358768_ns_to_cnt(val, dsibclk_nsk) - 1; - dev_dbg(priv->dev, "THS_PREPARECNT %u\n", val); + dev_dbg(dev, "THS_PREPARECNT %u\n", val); /* THS_PREPARE + THS_ZERO > 145ns + 10*UI */ raw_val = tc358768_ns_to_cnt(145 - tc358768_to_ns(3 * ui_nsk), dsibclk_nsk) - 10; val2 = clamp(raw_val, 0, 127); - dev_dbg(priv->dev, "THS_ZEROCNT %u\n", val2); + dev_dbg(dev, "THS_ZEROCNT %u\n", val2); val |= val2 << 8; tc358768_write(priv, TC358768_THS_HEADERCNT, val); /* TWAKEUP > 1ms in lptxcnt steps */ val = tc358768_ns_to_cnt(1020000, dsibclk_nsk); val = val / (lptxcnt + 1) - 1; - dev_dbg(priv->dev, "TWAKEUP: %u\n", val); + dev_dbg(dev, "TWAKEUP: %u\n", val); tc358768_write(priv, TC358768_TWAKEUP, val); /* TCLK_POSTCNT > 60ns + 52*UI */ val = tc358768_ns_to_cnt(60 + tc358768_to_ns(52 * ui_nsk), dsibclk_nsk) - 3; - dev_dbg(priv->dev, "TCLK_POSTCNT: %u\n", val); + dev_dbg(dev, "TCLK_POSTCNT: %u\n", val); tc358768_write(priv, TC358768_TCLK_POSTCNT, val); /* max(60ns + 4*UI, 8*UI) < THS_TRAILCNT < 105ns + 12*UI */ raw_val = tc358768_ns_to_cnt(60 + tc358768_to_ns(18 * ui_nsk), dsibclk_nsk) - 4; val = clamp(raw_val, 0, 15); - dev_dbg(priv->dev, "THS_TRAILCNT: %u\n", val); + dev_dbg(dev, "THS_TRAILCNT: %u\n", val); tc358768_write(priv, TC358768_THS_TRAILCNT, val); val = BIT(0); @@ -805,10 +806,10 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge) /* TXTAGOCNT[26:16] RXTASURECNT[10:0] */ val = tc358768_to_ns((lptxcnt + 1) * dsibclk_nsk * 4); val = tc358768_ns_to_cnt(val, dsibclk_nsk) / 4 - 1; - dev_dbg(priv->dev, "TXTAGOCNT: %u\n", val); + dev_dbg(dev, "TXTAGOCNT: %u\n", val); val2 = tc358768_ns_to_cnt(tc358768_to_ns((lptxcnt + 1) * dsibclk_nsk), dsibclk_nsk) - 2; - dev_dbg(priv->dev, "RXTASURECNT: %u\n", val2); + dev_dbg(dev, "RXTASURECNT: %u\n", val2); val = val << 16 | val2; tc358768_write(priv, TC358768_BTACNTRL1, val); @@ -902,7 +903,7 @@ static void tc358768_bridge_pre_enable(struct drm_bridge *bridge) ret = tc358768_clear_error(priv); if (ret) { - dev_err(priv->dev, "Bridge pre_enable failed: %d\n", ret); + dev_err(dev, "Bridge pre_enable failed: %d\n", ret); tc358768_bridge_disable(bridge); tc358768_bridge_post_disable(bridge); }
Simplify the code by capturing the priv->dev value to dev variable, and use it. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> --- drivers/gpu/drm/bridge/tc358768.c | 41 ++++++++++++++++++++------------------- 1 file changed, 21 insertions(+), 20 deletions(-)