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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 v7 8/9] drm: Add definition for eDP backlight frequency
Date: Thu, 11 May 2017 16:02:24 -0700	[thread overview]
Message-ID: <20170511230225.142870-9-puthik@chromium.org> (raw)
In-Reply-To: <20170511230225.142870-1-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.rc2.291.g57267f2277-goog

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  parent reply	other threads:[~2017-05-11 23:02 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-05-11 23:02 [PATCH v7 0/9] Enhancement to intel_dp_aux_backlight driver Puthikorn Voravootivat
2017-05-11 23:02 ` [PATCH v7 1/9] drm/i915: Fix cap check for " Puthikorn Voravootivat
2017-05-11 23:02 ` [PATCH v7 2/9] drm/i915: Correctly enable backlight brightness adjustment via DPCD Puthikorn Voravootivat
2017-05-11 23:02 ` [PATCH v7 3/9] drm/i915: Drop AUX backlight enable check for backlight control Puthikorn Voravootivat
2017-05-12  5:00   ` Pandiyan, Dhinakaran
2017-05-12 13:14     ` Jani Nikula
2017-05-12 18:10       ` Puthikorn Voravootivat
2017-05-12 20:19         ` Pandiyan, Dhinakaran
2017-05-11 23:02 ` [PATCH v7 4/9] drm/i915: Allow choosing how to adjust brightness if both supported Puthikorn Voravootivat
2017-05-11 23:02 ` [PATCH v7 5/9] drm/i915: Set backlight mode before enable backlight Puthikorn Voravootivat
2017-05-11 23:02 ` [PATCH v7 6/9] drm/i915: Add option to support dynamic backlight via DPCD Puthikorn Voravootivat
2017-05-12  4:02   ` Pandiyan, Dhinakaran
2017-05-11 23:02 ` [PATCH v7 7/9] drm/i915: Restore brightness level in aux backlight driver Puthikorn Voravootivat
2017-05-11 23:02 ` Puthikorn Voravootivat [this message]
2017-05-11 23:02 ` [PATCH v7 9/9] drm/i915: Set PWM divider to match desired frequency in vbt Puthikorn Voravootivat
2017-05-13  0:12   ` Pandiyan, Dhinakaran
2017-05-13  0:31     ` Puthikorn Voravootivat
2017-05-15 23:07       ` Pandiyan, Dhinakaran
2017-05-16  0:43         ` Puthikorn Voravootivat
2017-05-16  6:21           ` Pandiyan, Dhinakaran
2017-05-16 18:07             ` Puthikorn Voravootivat
2017-05-16 20:29               ` Pandiyan, Dhinakaran
2017-05-16 20:56                 ` Puthikorn Voravootivat
2017-05-16 21:21                   ` Pandiyan, Dhinakaran
2017-05-17  0:39                     ` Puthikorn Voravootivat
2017-05-17 18:31                       ` Pandiyan, Dhinakaran
2017-05-11 23:21 ` ✓ Fi.CI.BAT: success for Enhancement to intel_dp_aux_backlight driver (rev6) Patchwork

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