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From:   Raphael GALLAIS-POU - foss <raphael.gallais-pou@foss.st.com>
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        Raphael GALLAIS-POU - foss <raphael.gallais-pou@foss.st.com>,
        Raphael GALLAIS-POU <raphael.gallais-pou@st.com>,
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Subject: [PATCH 2/2] drm/stm: dsi: Use dev_ based logging
Thread-Topic: [PATCH 2/2] drm/stm: dsi: Use dev_ based logging
Thread-Index: AQHXCPxRmuabm72FykCaBQSzcYydLw==
Date:   Mon, 22 Feb 2021 09:23:02 +0000
Message-ID: <20210222092205.32086-3-raphael.gallais-pou@foss.st.com>
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From: Yannick Fertre <yannick.fertre@st.com>

Standardize on the dev_ based logging.

Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
Signed-off-by: Yannick Fertre <yannick.fertre@foss.st.com>
---
 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 {
=20
 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_s=
tm *dsi, u32 reg,
 	dsi_write(dsi, reg, (dsi_read(dsi, reg) & ~mask) | val);
 }
=20
-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 =3D 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");
=20
 	/* Enable the DSI PLL & wait for its lock */
 	dsi_set(dsi, DSI_WRPCR, WRPCR_PLLEN);
 	ret =3D 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");
=20
 	return 0;
 }
@@ -221,7 +223,7 @@ static void dw_mipi_dsi_phy_power_on(void *priv_data)
 {
 	struct dw_mipi_dsi_stm *dsi =3D priv_data;
=20
-	DRM_DEBUG_DRIVER("\n");
+	dev_dbg(dsi->dev, "\n");
=20
 	/* 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 =3D priv_data;
=20
-	DRM_DEBUG_DRIVER("\n");
+	dev_dbg(dsi->dev, "\n");
=20
 	/* 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 stru=
ct drm_display_mode *mode,
=20
 	if (pll_out_khz > dsi->lane_max_kbps) {
 		pll_out_khz =3D 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 =3D dsi->lane_min_kbps;
-		DRM_WARN("Warning min phy mbps is used\n");
+		dev_warn(dsi->dev, "Warning min phy mbps is used\n");
 	}
=20
 	/* Compute best pll parameters */
@@ -281,7 +283,7 @@ dw_mipi_dsi_get_lane_mbps(void *priv_data, const struct=
 drm_display_mode *mode,
 	ret =3D 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");
=20
 	/* Get the adjusted pll out value */
 	pll_out_khz =3D 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 stru=
ct drm_display_mode *mode,
=20
 	/* 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);
=20
 	*lane_mbps =3D pll_out_khz / 1000;
=20
-	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;
 }
=20
@@ -352,11 +353,13 @@ static int dw_mipi_dsi_stm_probe(struct platform_devi=
ce *pdev)
 	if (!dsi)
 		return -ENOMEM;
=20
+	dsi->dev =3D dev;
+
 	res =3D platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	dsi->base =3D devm_ioremap_resource(dev, res);
 	if (IS_ERR(dsi->base)) {
 		ret =3D 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;
 	}
=20
@@ -369,7 +372,7 @@ static int dw_mipi_dsi_stm_probe(struct platform_device=
 *pdev)
=20
 	ret =3D 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;
 	}
=20
@@ -382,20 +385,20 @@ static int dw_mipi_dsi_stm_probe(struct platform_devi=
ce *pdev)
=20
 	ret =3D 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;
 	}
=20
 	pclk =3D devm_clk_get(dev, "pclk");
 	if (IS_ERR(pclk)) {
 		ret =3D 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;
 	}
=20
 	ret =3D 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;
 	}
=20
@@ -404,7 +407,7 @@ static int dw_mipi_dsi_stm_probe(struct platform_device=
 *pdev)
=20
 	if (dsi->hw_version !=3D HWVER_130 && dsi->hw_version !=3D HWVER_131) {
 		ret =3D -ENODEV;
-		DRM_ERROR("bad dsi hardware version\n");
+		dev_err(dev, "bad dsi hardware version\n");
 		goto err_dsi_probe;
 	}
=20
@@ -445,7 +448,7 @@ static int __maybe_unused dw_mipi_dsi_stm_suspend(struc=
t device *dev)
 {
 	struct dw_mipi_dsi_stm *dsi =3D dw_mipi_dsi_stm_plat_data.priv_data;
=20
-	DRM_DEBUG_DRIVER("\n");
+	dev_dbg(dsi->dev, "\n");
=20
 	clk_disable_unprepare(dsi->pllref_clk);
 	regulator_disable(dsi->vdd_supply);
@@ -458,18 +461,18 @@ static int __maybe_unused dw_mipi_dsi_stm_resume(stru=
ct device *dev)
 	struct dw_mipi_dsi_stm *dsi =3D dw_mipi_dsi_stm_plat_data.priv_data;
 	int ret;
=20
-	DRM_DEBUG_DRIVER("\n");
+	dev_dbg(dsi->dev, "\n");
=20
 	ret =3D 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;
 	}
=20
 	ret =3D 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;
 	}
=20
--=20
2.17.1