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 v6 8/9] drm: Add definition for eDP backlight frequency
Date: Tue, 9 May 2017 16:40:51 -0700 [thread overview]
Message-ID: <20170509234052.189575-9-puthik@chromium.org> (raw)
In-Reply-To: <20170509234052.189575-1-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>
---
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..810b7d5d9f2b 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 27000000
#define DP_EDP_BACKLIGHT_FREQ_CAP_MIN_MSB 0x72a
#define DP_EDP_BACKLIGHT_FREQ_CAP_MIN_MID 0x72b
--
2.13.0.rc2.291.g57267f2277-goog
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next prev parent reply other threads:[~2017-05-09 23:41 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-05-09 23:40 [PATCH v6 0/9] Enhancement to intel_dp_aux_backlight driver Puthikorn Voravootivat
2017-05-09 23:40 ` [PATCH v6 1/9] drm/i915: Fix cap check for " Puthikorn Voravootivat
2017-05-11 0:14 ` Pandiyan, Dhinakaran
2017-05-09 23:40 ` [PATCH v6 2/9] drm/i915: Correctly enable backlight brightness adjustment via DPCD Puthikorn Voravootivat
2017-05-09 23:40 ` [PATCH v6 3/9] drm/i915: Drop AUX backlight enable check for backlight control Puthikorn Voravootivat
2017-05-11 0:39 ` Pandiyan, Dhinakaran
2017-05-11 21:01 ` Puthikorn Voravootivat
2017-05-09 23:40 ` [PATCH v6 4/9] drm/i915: Allow choosing how to adjust brightness if both supported Puthikorn Voravootivat
2017-05-11 0:50 ` Pandiyan, Dhinakaran
2017-05-09 23:40 ` [PATCH v6 5/9] drm/i915: Set backlight mode before enable backlight Puthikorn Voravootivat
2017-05-09 23:40 ` [PATCH v6 6/9] drm/i915: Support dynamic backlight via DPCD register Puthikorn Voravootivat
2017-05-11 5:45 ` Pandiyan, Dhinakaran
2017-05-09 23:40 ` [PATCH v6 7/9] drm/i915: Restore brightness level in aux backlight driver Puthikorn Voravootivat
2017-05-09 23:40 ` Puthikorn Voravootivat [this message]
2017-05-11 1:09 ` [PATCH v6 8/9] drm: Add definition for eDP backlight frequency Pandiyan, Dhinakaran
2017-05-09 23:40 ` [PATCH v6 9/9] drm/i915: Set PWM divider to match desired frequency in vbt Puthikorn Voravootivat
2017-05-10 7:45 ` ✗ Fi.CI.BAT: failure for Enhancement to intel_dp_aux_backlight driver (rev5) Patchwork
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