Attachment 79852 Details for Bug 64904 – mangle with dpms mode, before/after dac sense

[patch] mangle with dpms mode, before/after dac sense

dac_sense_touch_dpms_mode.patch (text/plain), 1.06 KB, created by Emil Velikov on 2013-05-27 14:41:35 UTC

(hide)

Description:

Filename:

MIME Type:

Creator: Emil Velikov

Created: 2013-05-27 14:41:35 UTC

Size: 1.06 KB

patch

obsolete

>diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c
>index d0817d9..ad1819b 100644
>--- a/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c
>+++ b/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c
>@@ -50,11 +50,23 @@ nv50_dac_sense(struct nv50_disp_priv *priv, int or, u32 loadval)
> {
> 	const u32 doff = (or * 0x800);
> 	int load = -EINVAL;
>+	u32 dpms_state;
>+
>+/*	nv_wr32(priv, NV50_PDISPLAY_DAC_CLK_CTRL1(or), 0x00000001); */
>+	dpms_state = nv_rd32(priv, 0x61a004 + doff);
>+	nv_info(priv, "[1] 0x%x\n", dpms_state);
>+	nv_wr32(priv, 0x61a004 + doff, 0x80000000 | 0x00150000);
>+	nv_wait(priv, 0x61a004 + doff, 0x80000000, 0x00000000);
>+
> 	nv_wr32(priv, 0x61a00c + doff, 0x00100000 | loadval);
>+/*	mdelay(45); */
> 	udelay(9500);
> 	nv_wr32(priv, 0x61a00c + doff, 0x80000000);
> 	load = (nv_rd32(priv, 0x61a00c + doff) & 0x38000000) >> 27;
> 	nv_wr32(priv, 0x61a00c + doff, 0x00000000);
>+
>+	nv_info(priv, "[2] 0x%x\n", nv_rd32(priv, 0x61a004 + doff));
>+	nv_wr32(priv, 0x61a004 + doff, 0x80000000 | dpms_state);
> 	return load;
> }
>

Actions: View | Splinter Review

Attachments on bug 64904: 79775 | 79820 | 79852

Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.