From: Deepak M <m.deepak@intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: Deepak M <m.deepak@intel.com>
Subject: [PATCH 3/3] drm/i915: Use the ceil value for the additional clk divider
Date: Fri, 4 Dec 2015 19:47:39 +0530 [thread overview]
Message-ID: <1449238659-12473-3-git-send-email-m.deepak@intel.com> (raw)
In-Reply-To: <1449238659-12473-1-git-send-email-m.deepak@intel.com>
Additional clock value divider should use the ceil
value of the calulation to get the correct divider value.
Signed-off-by: Deepak M <m.deepak@intel.com>
---
drivers/gpu/drm/i915/intel_dsi_pll.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_dsi_pll.c b/drivers/gpu/drm/i915/intel_dsi_pll.c
index cb3cf39..1322a71 100644
--- a/drivers/gpu/drm/i915/intel_dsi_pll.c
+++ b/drivers/gpu/drm/i915/intel_dsi_pll.c
@@ -454,7 +454,7 @@ static void bxt_dsi_program_clocks(struct drm_device *dev, enum port port)
dsi_rate = (BXT_REF_CLOCK_KHZ * pll_ratio) / 2;
/* Max possible output of clock is 39.5 MHz, program value -1 */
- divider = (dsi_rate / BXT_MAX_VAR_OUTPUT_KHZ) - 1;
+ divider = DIV_ROUND_UP(dsi_rate, BXT_MAX_VAR_OUTPUT_KHZ) - 1;
tmp |= BXT_MIPI_ESCLK_VAR_DIV(port, divider);
/*
--
1.9.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/intel-gfx
next prev parent reply other threads:[~2015-12-04 8:43 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-04 14:17 [PATCH 1/3] drm/i915: Add DPI FIFO empty status check Deepak M
2015-12-04 9:49 ` Ville Syrjälä
2015-12-04 9:55 ` Deepak, M
2015-12-04 16:11 ` [PATCH] " Deepak M
2015-12-04 11:26 ` Ville Syrjälä
2015-12-09 11:35 ` Deepak M
2015-12-09 14:34 ` Ville Syrjälä
2015-12-10 9:08 ` Daniel Vetter
2016-01-22 8:31 ` Jani Nikula
2015-12-04 14:17 ` [PATCH 2/3] drm/i915: Correct the Ref clock value for BXT Deepak M
2015-12-04 9:55 ` Ville Syrjälä
2015-12-04 16:22 ` Daniel Vetter
2015-12-04 16:25 ` Deepak, M
2015-12-04 17:20 ` Ville Syrjälä
2015-12-04 14:17 ` Deepak M [this message]
2015-12-04 11:51 ` [PATCH 3/3] drm/i915: Use the ceil value for the additional clk divider Ville Syrjälä
2015-12-04 16:59 ` Deepak, M
2016-01-20 11:06 ` [PATCH 1/3] drm/i915: Add DPI FIFO empty status check Mika Kahola
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=1449238659-12473-3-git-send-email-m.deepak@intel.com \
--to=m.deepak@intel.com \
--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 a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox