Re: [PATCH 2/2] drm/stm: dsi: Use dev_ based logging

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Tested-by: Yannick Fertre <yannick.fertre@xxxxxxxxxxx>

On 2/22/21 10:23 AM, Raphael GALLAIS-POU - foss wrote:
From: Yannick Fertre <yannick.fertre@xxxxxx>

Standardize on the dev_ based logging.

Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@xxxxxxxxxxx>
Signed-off-by: Yannick Fertre <yannick.fertre@xxxxxxxxxxx>
---
  drivers/gpu/drm/stm/dw_mipi_dsi-stm.c | 49 ++++++++++++++-------------
  1 file changed, 26 insertions(+), 23 deletions(-)

diff --git a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c
index 8399d337589d..a7226bb3d0e8 100644
--- a/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c
+++ b/drivers/gpu/drm/stm/dw_mipi_dsi-stm.c
@@ -76,6 +76,7 @@ enum dsi_color {
struct dw_mipi_dsi_stm {
  	void __iomem *base;
+	struct device *dev;
  	struct clk *pllref_clk;
  	struct dw_mipi_dsi *dsi;
  	u32 hw_version;
@@ -110,7 +111,8 @@ static inline void dsi_update_bits(struct dw_mipi_dsi_stm *dsi, u32 reg,
  	dsi_write(dsi, reg, (dsi_read(dsi, reg) & ~mask) | val);
  }
-static enum dsi_color dsi_color_from_mipi(enum mipi_dsi_pixel_format fmt)
+static enum dsi_color dsi_color_from_mipi(struct dw_mipi_dsi_stm *dsi,
+					  enum mipi_dsi_pixel_format fmt)
  {
  	switch (fmt) {
  	case MIPI_DSI_FMT_RGB888:
@@ -122,7 +124,7 @@ static enum dsi_color dsi_color_from_mipi(enum mipi_dsi_pixel_format fmt)
  	case MIPI_DSI_FMT_RGB565:
  		return DSI_RGB565_CONF1;
  	default:
-		DRM_DEBUG_DRIVER("MIPI color invalid, so we use rgb888\n");
+		dev_dbg(dsi->dev, "MIPI color invalid, so we use rgb888\n");
  	}
  	return DSI_RGB888;
  }
@@ -205,14 +207,14 @@ static int dw_mipi_dsi_phy_init(void *priv_data)
  	ret = readl_poll_timeout(dsi->base + DSI_WISR, val, val & WISR_RRS,
  				 SLEEP_US, TIMEOUT_US);
  	if (ret)
-		DRM_DEBUG_DRIVER("!TIMEOUT! waiting REGU, let's continue\n");
+		dev_dbg(dsi->dev, "!TIMEOUT! waiting REGU, let's continue\n");
/* Enable the DSI PLL & wait for its lock */
  	dsi_set(dsi, DSI_WRPCR, WRPCR_PLLEN);
  	ret = readl_poll_timeout(dsi->base + DSI_WISR, val, val & WISR_PLLLS,
  				 SLEEP_US, TIMEOUT_US);
  	if (ret)
-		DRM_DEBUG_DRIVER("!TIMEOUT! waiting PLL, let's continue\n");
+		dev_dbg(dsi->dev, "!TIMEOUT! waiting PLL, let's continue\n");
return 0;
  }
@@ -221,7 +223,7 @@ static void dw_mipi_dsi_phy_power_on(void *priv_data)
  {
  	struct dw_mipi_dsi_stm *dsi = priv_data;
- DRM_DEBUG_DRIVER("\n");
+	dev_dbg(dsi->dev, "\n");
/* Enable the DSI wrapper */
  	dsi_set(dsi, DSI_WCR, WCR_DSIEN);
@@ -231,7 +233,7 @@ static void dw_mipi_dsi_phy_power_off(void *priv_data)
  {
  	struct dw_mipi_dsi_stm *dsi = priv_data;
- DRM_DEBUG_DRIVER("\n");
+	dev_dbg(dsi->dev, "\n");
/* Disable the DSI wrapper */
  	dsi_clear(dsi, DSI_WCR, WCR_DSIEN);
@@ -267,11 +269,11 @@ dw_mipi_dsi_get_lane_mbps(void *priv_data, const struct drm_display_mode *mode,
if (pll_out_khz > dsi->lane_max_kbps) {
  		pll_out_khz = dsi->lane_max_kbps;
-		DRM_WARN("Warning max phy mbps is used\n");
+		dev_warn(dsi->dev, "Warning max phy mbps is used\n");
  	}
  	if (pll_out_khz < dsi->lane_min_kbps) {
  		pll_out_khz = dsi->lane_min_kbps;
-		DRM_WARN("Warning min phy mbps is used\n");
+		dev_warn(dsi->dev, "Warning min phy mbps is used\n");
  	}
/* Compute best pll parameters */
@@ -281,7 +283,7 @@ dw_mipi_dsi_get_lane_mbps(void *priv_data, const struct drm_display_mode *mode,
  	ret = dsi_pll_get_params(dsi, pll_in_khz, pll_out_khz,
  				 &idf, &ndiv, &odf);
  	if (ret)
-		DRM_WARN("Warning dsi_pll_get_params(): bad params\n");
+		dev_warn(dsi->dev, "Warning dsi_pll_get_params(): bad params\n");
/* Get the adjusted pll out value */
  	pll_out_khz = dsi_pll_get_clkout_khz(pll_in_khz, idf, ndiv, odf);
@@ -299,13 +301,12 @@ dw_mipi_dsi_get_lane_mbps(void *priv_data, const struct drm_display_mode *mode,
/* Select the color coding */
  	dsi_update_bits(dsi, DSI_WCFGR, WCFGR_COLMUX,
-			dsi_color_from_mipi(format) << 1);
+			dsi_color_from_mipi(dsi, format) << 1);
*lane_mbps = pll_out_khz / 1000; - DRM_DEBUG_DRIVER("pll_in %ukHz pll_out %ukHz lane_mbps %uMHz\n",
-			 pll_in_khz, pll_out_khz, *lane_mbps);
-
+	dev_dbg(dsi->dev, "pll_in %ukHz pll_out %ukHz lane_mbps %uMHz\n",
+			pll_in_khz, pll_out_khz, *lane_mbps);
  	return 0;
  }
@@ -352,11 +353,13 @@ static int dw_mipi_dsi_stm_probe(struct platform_device *pdev)
  	if (!dsi)
  		return -ENOMEM;
+ dsi->dev = dev;
+
  	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
  	dsi->base = devm_ioremap_resource(dev, res);
  	if (IS_ERR(dsi->base)) {
  		ret = PTR_ERR(dsi->base);
-		DRM_ERROR("Unable to get dsi registers %d\n", ret);
+		dev_err(dev, "Unable to get dsi registers %d\n", ret);
  		return ret;
  	}
@@ -369,7 +372,7 @@ static int dw_mipi_dsi_stm_probe(struct platform_device *pdev) ret = regulator_enable(dsi->vdd_supply);
  	if (ret) {
-		DRM_ERROR("Failed to enable regulator: %d\n", ret);
+		dev_err(dev, "Failed to enable regulator: %d\n", ret);
  		return ret;
  	}
@@ -382,20 +385,20 @@ static int dw_mipi_dsi_stm_probe(struct platform_device *pdev) ret = clk_prepare_enable(dsi->pllref_clk);
  	if (ret) {
-		DRM_ERROR("Failed to enable pllref_clk: %d\n", ret);
+		dev_err(dev, "Failed to enable pllref_clk: %d\n", ret);
  		goto err_clk_get;
  	}
pclk = devm_clk_get(dev, "pclk");
  	if (IS_ERR(pclk)) {
  		ret = PTR_ERR(pclk);
-		DRM_ERROR("Unable to get peripheral clock: %d\n", ret);
+		dev_err(dev, "Unable to get peripheral clock: %d\n", ret);
  		goto err_dsi_probe;
  	}
ret = clk_prepare_enable(pclk);
  	if (ret) {
-		DRM_ERROR("%s: Failed to enable peripheral clk\n", __func__);
+		dev_err(dev, "%s: Failed to enable peripheral clk\n", __func__);
  		goto err_dsi_probe;
  	}
@@ -404,7 +407,7 @@ static int dw_mipi_dsi_stm_probe(struct platform_device *pdev) if (dsi->hw_version != HWVER_130 && dsi->hw_version != HWVER_131) {
  		ret = -ENODEV;
-		DRM_ERROR("bad dsi hardware version\n");
+		dev_err(dev, "bad dsi hardware version\n");
  		goto err_dsi_probe;
  	}
@@ -445,7 +448,7 @@ static int __maybe_unused dw_mipi_dsi_stm_suspend(struct device *dev)
  {
  	struct dw_mipi_dsi_stm *dsi = dw_mipi_dsi_stm_plat_data.priv_data;
- DRM_DEBUG_DRIVER("\n");
+	dev_dbg(dsi->dev, "\n");
clk_disable_unprepare(dsi->pllref_clk);
  	regulator_disable(dsi->vdd_supply);
@@ -458,18 +461,18 @@ static int __maybe_unused dw_mipi_dsi_stm_resume(struct device *dev)
  	struct dw_mipi_dsi_stm *dsi = dw_mipi_dsi_stm_plat_data.priv_data;
  	int ret;
- DRM_DEBUG_DRIVER("\n");
+	dev_dbg(dsi->dev, "\n");
ret = regulator_enable(dsi->vdd_supply);
  	if (ret) {
-		DRM_ERROR("Failed to enable regulator: %d\n", ret);
+		dev_err(dev, "Failed to enable regulator: %d\n", ret);
  		return ret;
  	}
ret = clk_prepare_enable(dsi->pllref_clk);
  	if (ret) {
  		regulator_disable(dsi->vdd_supply);
-		DRM_ERROR("Failed to enable pllref_clk: %d\n", ret);
+		dev_err(dev, "Failed to enable pllref_clk: %d\n", ret);
  		return ret;
  	}
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