add mode_valid function, and we can also use it to make suse the resolution is valid.
Signed-off-by: Tian Tao tiantao6@hisilicon.com Signed-off-by: Gong junjie gongjunjie2@huawei.com --- drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c index 843d784..6cb7a79 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c @@ -242,6 +242,25 @@ static void hibmc_crtc_atomic_disable(struct drm_crtc *crtc, hibmc_set_current_gate(priv, reg); }
+enum drm_mode_status hibmc_crtc_mode_valid(struct drm_crtc *crtc, + const struct drm_display_mode *mode) +{ + int i = 0; + int vrefresh = drm_mode_vrefresh(mode); + + if (vrefresh < 59 || vrefresh > 61) + return MODE_NOMODE; + + for (i = 0; i < ARRAY_SIZE(hibmc_pll_table); i++) { + if (hibmc_pll_table[i].hdisplay == mode->hdisplay && + hibmc_pll_table[i].vdisplay == mode->vdisplay) + return MODE_OK; + } + + return MODE_NOMODE; +} + + static unsigned int format_pll_reg(void) { unsigned int pllreg = 0; @@ -510,6 +529,7 @@ static const struct drm_crtc_helper_funcs hibmc_crtc_helper_funcs = { .atomic_flush = hibmc_crtc_atomic_flush, .atomic_enable = hibmc_crtc_atomic_enable, .atomic_disable = hibmc_crtc_atomic_disable, + .mode_valid = hibmc_crtc_mode_valid, };
int hibmc_de_init(struct hibmc_drm_private *priv)
Hi,
here are a few more nits to fix.
Am 08.01.20 um 09:19 schrieb Tian Tao:
add mode_valid function, and we can also use it to make suse the resolution is valid.
Start with capital 'Add' and make it a simple sentence. Change 'suse' to 'sure'
Signed-off-by: Tian Tao tiantao6@hisilicon.com Signed-off-by: Gong junjie gongjunjie2@huawei.com
drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c index 843d784..6cb7a79 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c @@ -242,6 +242,25 @@ static void hibmc_crtc_atomic_disable(struct drm_crtc *crtc, hibmc_set_current_gate(priv, reg); }
+enum drm_mode_status hibmc_crtc_mode_valid(struct drm_crtc *crtc,
const struct drm_display_mode *mode)
Please declare this function as static.
+{
- int i = 0;
- int vrefresh = drm_mode_vrefresh(mode);
- if (vrefresh < 59 || vrefresh > 61)
return MODE_NOMODE;
I'd return MODE_NOCLOCK or MODE_CLOCK_RANGE.
- for (i = 0; i < ARRAY_SIZE(hibmc_pll_table); i++) {
if (hibmc_pll_table[i].hdisplay == mode->hdisplay &&hibmc_pll_table[i].vdisplay == mode->vdisplay)return MODE_OK;- }
- return MODE_NOMODE;
Maybe return MODE_BAD. MODE_NOMODE apparently refers to a descriptive string for the mode.
+}
One one empty line please.
With these fixes applied, you can add my
Reviewed-by: Thomas Zimmermann tzimmermann@suse.de
Best regards Thomas
static unsigned int format_pll_reg(void) { unsigned int pllreg = 0; @@ -510,6 +529,7 @@ static const struct drm_crtc_helper_funcs hibmc_crtc_helper_funcs = { .atomic_flush = hibmc_crtc_atomic_flush, .atomic_enable = hibmc_crtc_atomic_enable, .atomic_disable = hibmc_crtc_atomic_disable,
- .mode_valid = hibmc_crtc_mode_valid,
};
int hibmc_de_init(struct hibmc_drm_private *priv)
Hi Thomas Zimmermann:
I will modify this patch and send v2 as you suggested. Thank you very much.
Best
-----邮件原件----- 发件人: Thomas Zimmermann [mailto:tzimmermann@suse.de] 发送时间: 2020年1月8日 16:49 收件人: tiantao (H) tiantao6@hisilicon.com; Chenfeng (puck) puck.chen@hisilicon.com; airlied@linux.ie; daniel@ffwll.ch; kraxel@redhat.com; alexander.deucher@amd.com; tglx@linutronix.de; dri-devel@lists.freedesktop.org; xinliang.liu@linaro.org; linux-kernel@vger.kernel.org 抄送: Linuxarm linuxarm@huawei.com 主题: Re: [PATCH] drm/hisilicon: add the mode_valid function
Hi,
here are a few more nits to fix.
Am 08.01.20 um 09:19 schrieb Tian Tao:
add mode_valid function, and we can also use it to make suse the resolution is valid.
Start with capital 'Add' and make it a simple sentence. Change 'suse' to 'sure'
Signed-off-by: Tian Tao tiantao6@hisilicon.com Signed-off-by: Gong junjie gongjunjie2@huawei.com
drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+)
diff --git a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c index 843d784..6cb7a79 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c +++ b/drivers/gpu/drm/hisilicon/hibmc/hibmc_drm_de.c @@ -242,6 +242,25 @@ static void hibmc_crtc_atomic_disable(struct drm_crtc *crtc, hibmc_set_current_gate(priv, reg); }
+enum drm_mode_status hibmc_crtc_mode_valid(struct drm_crtc *crtc,
const struct drm_display_mode *mode)
Please declare this function as static.
+{
- int i = 0;
- int vrefresh = drm_mode_vrefresh(mode);
- if (vrefresh < 59 || vrefresh > 61)
return MODE_NOMODE;
I'd return MODE_NOCLOCK or MODE_CLOCK_RANGE.
- for (i = 0; i < ARRAY_SIZE(hibmc_pll_table); i++) {
if (hibmc_pll_table[i].hdisplay == mode->hdisplay &&hibmc_pll_table[i].vdisplay == mode->vdisplay)return MODE_OK;- }
- return MODE_NOMODE;
Maybe return MODE_BAD. MODE_NOMODE apparently refers to a descriptive string for the mode.
+}
One one empty line please.
With these fixes applied, you can add my
Reviewed-by: Thomas Zimmermann tzimmermann@suse.de
Best regards Thomas
static unsigned int format_pll_reg(void) { unsigned int pllreg = 0; @@ -510,6 +529,7 @@ static const struct drm_crtc_helper_funcs hibmc_crtc_helper_funcs = { .atomic_flush = hibmc_crtc_atomic_flush, .atomic_enable = hibmc_crtc_atomic_enable, .atomic_disable = hibmc_crtc_atomic_disable,
- .mode_valid = hibmc_crtc_mode_valid,
};
int hibmc_de_init(struct hibmc_drm_private *priv)
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Thomas Zimmermann -
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