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SubjectRe: [PATCH v2 02/10] video: stm32: stm32_ltdc: update debug log
Date
Hi Yannick

On 03/02/2018 04:44 PM, yannick fertre wrote:
> Replace macro debug by pr_error, pr_warn or pr_info.
>
> Signed-off-by: yannick fertre <yannick.fertre@st.com>
> ---
> drivers/video/stm32/stm32_ltdc.c | 62 ++++++++++++++++++++--------------------
> 1 file changed, 31 insertions(+), 31 deletions(-)
>
> diff --git a/drivers/video/stm32/stm32_ltdc.c b/drivers/video/stm32/stm32_ltdc.c
> index bd9c0de..e95f35c 100644
> --- a/drivers/video/stm32/stm32_ltdc.c
> +++ b/drivers/video/stm32/stm32_ltdc.c
> @@ -176,13 +176,13 @@ static u32 stm32_ltdc_get_pixel_format(enum video_log2_bpp l2bpp)
> case VIDEO_BPP2:
> case VIDEO_BPP4:
> default:
> - debug("%s: warning %dbpp not supported yet, %dbpp instead\n",
> - __func__, VNBITS(l2bpp), VNBITS(VIDEO_BPP16));
> + pr_warn("%s: warning %dbpp not supported yet, %dbpp instead\n",
> + __func__, VNBITS(l2bpp), VNBITS(VIDEO_BPP16));
> pf = PF_RGB565;
> break;
> }
>
> - debug("%s: %d bpp -> ltdc pf %d\n", __func__, VNBITS(l2bpp), pf);
> + pr_info("%s: %d bpp -> ltdc pf %d\n", __func__, VNBITS(l2bpp), pf);
>
> return (u32)pf;
> }
> @@ -249,7 +249,7 @@ static void stm32_ltdc_set_mode(struct stm32_ltdc_priv *priv,
>
> /* Signal polarities */
> val = 0;
> - debug("%s: timing->flags 0x%08x\n", __func__, timings->flags);
> + pr_info("%s: timing->flags 0x%08x\n", __func__, timings->flags);
> if (timings->flags & DISPLAY_FLAGS_HSYNC_HIGH)
> val |= GCR_HSPOL;
> if (timings->flags & DISPLAY_FLAGS_VSYNC_HIGH)
> @@ -343,26 +343,26 @@ static int stm32_ltdc_probe(struct udevice *dev)
>
> priv->regs = (void *)dev_read_addr(dev);
> if ((fdt_addr_t)priv->regs == FDT_ADDR_T_NONE) {
> - debug("%s: ltdc dt register address error\n", __func__);
> + pr_err("%s: ltdc dt register address error\n", __func__);

As you get access to the struct udevice, prefer dev_err() here.

> return -EINVAL;
> }
>
> ret = clk_get_by_index(dev, 0, &pclk);
> if (ret) {
> - debug("%s: peripheral clock get error %d\n", __func__, ret);
> + pr_err("%s: peripheral clock get error %d\n", __func__, ret);

ditto

> return ret;
> }
>
> ret = clk_enable(&pclk);
> if (ret) {
> - debug("%s: peripheral clock enable error %d\n",
> - __func__, ret);
> + pr_err("%s: peripheral clock enable error %d\n",
> + __func__, ret);
ditto
> return ret;
> }
>
> ret = reset_get_by_index(dev, 0, &rst);
> if (ret) {
> - debug("%s: missing ltdc hardware reset\n", __func__);
> + pr_err("%s: missing ltdc hardware reset\n", __func__);
ditto
> return -ENODEV;
> }
>
> @@ -372,41 +372,40 @@ static int stm32_ltdc_probe(struct udevice *dev)
> #ifdef CONFIG_VIDEO_BRIDGE
> ret = uclass_get_device(UCLASS_VIDEO_BRIDGE, 0, &bridge);
> if (ret) {
> - debug("%s: No video bridge, or no backlight on bridge\n",
> - __func__);
> + pr_info("%s: No video bridge, or no backlight on bridge\n",
> + __func__);

dev_info()

> }
>
> if (bridge) {
> ret = video_bridge_attach(bridge);
> if (ret) {
> - debug("%s: fail to attach bridge\n", __func__);
> + pr_err("%s: fail to attach bridge\n", __func__);

dev_err()

> return ret;
> }
> }
> #endif
> ret = uclass_first_device(UCLASS_PANEL, &panel);
> if (ret) {
> - debug("%s: panel device error %d\n", __func__, ret);
> + pr_err("%s: panel device error %d\n", __func__, ret);

ditto

> return ret;
> }
>
> ret = fdtdec_decode_display_timing(gd->fdt_blob, dev_of_offset(panel),
> 0, &timings);
> if (ret) {
> - debug("%s: decode display timing error %d\n",
> - __func__, ret);
> + pr_err("%s: decode display timing error %d\n", __func__, ret);

ditto

> return ret;
> }
>
> rate = clk_set_rate(&pclk, timings.pixelclock.typ);
> if (rate < 0) {
> - debug("%s: fail to set pixel clock %d hz %d hz\n",
> - __func__, timings.pixelclock.typ, rate);
> + pr_err("%s: fail to set pixel clock %d hz %d hz\n",
> + __func__, timings.pixelclock.typ, rate);

ditto

> return rate;
> }
>
> - debug("%s: Set pixel clock req %d hz get %d hz\n", __func__,
> - timings.pixelclock.typ, rate);
> + pr_info("%s: Set pixel clock req %d hz get %d hz\n", __func__,
> + timings.pixelclock.typ, rate);
>
> /* TODO Below parameters are hard-coded for the moment... */
> priv->l2bpp = VIDEO_BPP16;
> @@ -417,12 +416,12 @@ static int stm32_ltdc_probe(struct udevice *dev)
> priv->crop_h = timings.vactive.typ;
> priv->alpha = 0xFF;
>
> - debug("%s: %dx%d %dbpp frame buffer at 0x%lx\n", __func__,
> - timings.hactive.typ, timings.vactive.typ,
> - VNBITS(priv->l2bpp), uc_plat->base);
> - debug("%s: crop %d,%d %dx%d bg 0x%08x alpha %d\n", __func__,
> - priv->crop_x, priv->crop_y, priv->crop_w, priv->crop_h,
> - priv->bg_col_argb, priv->alpha);
> + pr_info("%s: %dx%d %dbpp frame buffer at 0x%lx\n", __func__,
> + timings.hactive.typ, timings.vactive.typ,
> + VNBITS(priv->l2bpp), uc_plat->base);
> + pr_info("%s: crop %d,%d %dx%d bg 0x%08x alpha %d\n", __func__,
> + priv->crop_x, priv->crop_y, priv->crop_w, priv->crop_h,
> + priv->bg_col_argb, priv->alpha);


dev_info()

>
> /* Configure & start LTDC */
> stm32_ltdc_set_mode(priv, &timings);
> @@ -437,22 +436,22 @@ static int stm32_ltdc_probe(struct udevice *dev)
> if (bridge) {
> ret = video_bridge_set_backlight(bridge, 80);
> if (ret) {
> - debug("%s: fail to set backlight\n", __func__);
> + pr_err("%s: fail to set backlight\n", __func__);

dev_err()

> return ret;
> }
> } else {
> ret = panel_enable_backlight(panel);
> if (ret) {
> - debug("%s: panel %s enable backlight error %d\n",
> - __func__, panel->name, ret);
> + pr_err("%s: panel %s enable backlight error %d\n",
> + __func__, panel->name, ret);

ditto

> return ret;
> }
> }
> #else
> ret = panel_enable_backlight(panel);
> if (ret) {
> - debug("%s: panel %s enable backlight error %d\n",
> - __func__, panel->name, ret);
> + pr_err("%s: panel %s enable backlight error %d\n",
> + __func__, panel->name, ret);

ditto

> return ret;
> }
> #endif
> @@ -468,7 +467,8 @@ static int stm32_ltdc_bind(struct udevice *dev)
> uc_plat->size = CONFIG_VIDEO_STM32_MAX_XRES *
> CONFIG_VIDEO_STM32_MAX_YRES *
> (CONFIG_VIDEO_STM32_MAX_BPP >> 3);
> - debug("%s: frame buffer max size %d bytes\n", __func__, uc_plat->size);
> + pr_info("%s: frame buffer max size %d bytes\n", __func__,

dev_info()

> + uc_plat->size);
>
> return 0;
> }
>

Thanks

Patrice
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