From: Puthikorn Voravootivat <puthik@chromium.org>
To: intel-gfx@lists.freedesktop.org,
Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Puthikorn Voravootivat <puthik@chromium.org>,
dri-devel@lists.freedesktop.org
Subject: [PATCH v8 4/5] drm: Add definition for eDP backlight frequency
Date: Tue, 16 May 2017 17:34:02 -0700 [thread overview]
Message-ID: <20170517003403.152680-5-puthik@chromium.org> (raw)
In-Reply-To: <20170517003403.152680-1-puthik@chromium.org>
This patch adds the following definition
- Bit mask for EDP_PWMGEN_BIT_COUNT and min/max cap
register which only use bit 0:4
- Base frequency (27 MHz) for backlight PWM frequency
generator.
Signed-off-by: Puthikorn Voravootivat <puthik@chromium.org>
Reviewed-by: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
---
include/drm/drm_dp_helper.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index c0bd0d7651a9..eaa307f6ae8c 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -572,10 +572,12 @@
#define DP_EDP_PWMGEN_BIT_COUNT 0x724
#define DP_EDP_PWMGEN_BIT_COUNT_CAP_MIN 0x725
#define DP_EDP_PWMGEN_BIT_COUNT_CAP_MAX 0x726
+# define DP_EDP_PWMGEN_BIT_COUNT_MASK (0x1f << 0)
#define DP_EDP_BACKLIGHT_CONTROL_STATUS 0x727
#define DP_EDP_BACKLIGHT_FREQ_SET 0x728
+# define DP_EDP_BACKLIGHT_FREQ_BASE_KHZ 27000
#define DP_EDP_BACKLIGHT_FREQ_CAP_MIN_MSB 0x72a
#define DP_EDP_BACKLIGHT_FREQ_CAP_MIN_MID 0x72b
--
2.13.0.303.g4ebf302169-goog
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
next prev parent reply other threads:[~2017-05-17 0:34 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-17 0:33 [PATCH v8 0/5] Enhancement to intel_dp_aux_backlight driver Puthikorn Voravootivat
2017-05-17 0:33 ` [PATCH v8 1/5] drm/i915: Drop AUX backlight enable check for backlight control Puthikorn Voravootivat
2017-05-17 20:09 ` Pandiyan, Dhinakaran
2017-05-17 21:04 ` Puthikorn Voravootivat
2017-05-18 22:01 ` Pandiyan, Dhinakaran
2017-05-17 0:34 ` [PATCH v8 2/5] drm/i915: Allow choosing how to adjust brightness if both supported Puthikorn Voravootivat
2017-05-17 0:34 ` [PATCH v8 3/5] drm/i915: Add option to support dynamic backlight via DPCD Puthikorn Voravootivat
2017-05-17 20:33 ` Pandiyan, Dhinakaran
2017-05-19 21:00 ` Puthikorn Voravootivat
2017-05-23 20:55 ` Pandiyan, Dhinakaran
2017-05-17 0:34 ` Puthikorn Voravootivat [this message]
2017-05-17 0:34 ` [PATCH v8 5/5] drm/i915: Set PWM divider to match desired frequency in vbt Puthikorn Voravootivat
2017-05-17 20:07 ` Pandiyan, Dhinakaran
2017-05-17 0:50 ` ✓ Fi.CI.BAT: success for Enhancement to intel_dp_aux_backlight driver (rev7) Patchwork
2017-05-17 7:40 ` Patchwork
2017-05-17 10:23 ` Patchwork
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170517003403.152680-5-puthik@chromium.org \
--to=puthik@chromium.org \
--cc=dhinakaran.pandiyan@intel.com \
--cc=dri-devel@lists.freedesktop.org \
--cc=intel-gfx@lists.freedesktop.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.