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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Hi<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">These patches were then submitted to wider lists and reviewed at
<a href="http://lkml.iu.edu/hypermail/linux/kernel/1504.3/03382.html">http://lkml.iu.edu/hypermail/linux/kernel/1504.3/03382.html</a><o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Few of them are already merged and few got Acked/Reviwed-By. Rework was pending on couple of them. I am working on the same and updated set can be expected this
week.<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Regards<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D">Shobhit<o:p></o:p></span></p>
<p class="MsoNormal"><a name="_MailEndCompose"><span style="font-size:11.0pt;font-family:"Calibri",sans-serif;color:#1F497D"><o:p> </o:p></span></a></p>
<p class="MsoNormal"><b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif">From:</span></b><span style="font-size:11.0pt;font-family:"Calibri",sans-serif"> Brain WrecK [mailto:bloften80@gmail.com]
<br>
<b>Sent:</b> Wednesday, June 17, 2015 10:17 PM<br>
<b>To:</b> Kumar, Shobhit<br>
<b>Cc:</b> intel-gfx@lists.freedesktop.org<br>
<b>Subject:</b> T100TA Backlight<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Hello all<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">I am one of the people who is trying to work on getting linux working on the ASUS T100TA <o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">i am writing this to inquire about the following from the intel-gfx mailing list in regards to the Backlight for the T100TA that you created using the crystalcove PMIC. this was done back in April 2015 and maybe got buried under everything
else<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">do you know if this has been upstreamed yet or when it will be upstreamed?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">if not would you be able to send me the patches so we can take advantage of this on the latest 4.1 kernel?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">i have copied the message below for your review<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">thank you for your consideration<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<pre style="white-space:pre-wrap"><span style="color:black">Hi All,<o:p></o:p></span></pre>
<pre><span style="color:black">Finally I came back to this and tried to address the pending review comments. <o:p></o:p></span></pre>
<pre><span style="color:black">Couple of the patches from the older series were merged in linux-next. This<o:p></o:p></span></pre>
<pre><span style="color:black">series reworks on the remaining and rebases on linux-next. Basically following<o:p></o:p></span></pre>
<pre><span style="color:black">are implemented - <o:p></o:p></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
<pre><span style="color:black">1. GPIO control for panel enable/disable with GFX device as consumer<o:p></o:p></span></pre>
<pre><span style="color:black">2. New PWM chip driver added for CRC PMIC based backlight control<o:p></o:p></span></pre>
<pre><span style="color:black">3. i915 is modified to use the CRC gpio chip and the CRC PWM chip to do <o:p></o:p></span></pre>
<pre><span style="color:black"> backlight control. This is now added in intel_panel.c in the generic <o:p></o:p></span></pre>
<pre><span style="color:black"> panel backlight control infrastructure<o:p></o:p></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
<pre><span style="color:black">All these patches have been tested on AsusT100 and working fine using <o:p></o:p></span></pre>
<pre><span style="color:black">/sys/class/backlight/intel_backlight interface.<o:p></o:p></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
<pre><span style="color:black">Recently I noticed another device Dell Venue 8 Pro (BYT-CR) which should be<o:p></o:p></span></pre>
<pre><span style="color:black">using LPSS backlight control. There is already a LPSS PWM chip driver in<o:p></o:p></span></pre>
<pre><span style="color:black">upstream kernel which should be used in this case. That patch is for another<o:p></o:p></span></pre>
<pre><span style="color:black">day.<o:p></o:p></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
<pre><span style="color:black">Regards<o:p></o:p></span></pre>
<pre><span style="color:black">Shobhit<o:p></o:p></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
<pre><span style="color:black">Shobhit Kumar (8):<o:p></o:p></span></pre>
<pre><span style="color:black"> drivers/gpio/gpiolib: Add support for removing registered consumer<o:p></o:p></span></pre>
<pre><span style="color:black"> lookup table<o:p></o:p></span></pre>
<pre><span style="color:black"> drivers/pwm/core: Add support to remove registered consumer lookup<o:p></o:p></span></pre>
<pre><span style="color:black"> tables<o:p></o:p></span></pre>
<pre><span style="color:black"> drivers/mfd: Add lookup table for Panel Control as GPIO signal<o:p></o:p></span></pre>
<pre><span style="color:black"> drivers/mfd: Add PWM cell device for Crystalcove PMIC<o:p></o:p></span></pre>
<pre><span style="color:black"> drivers/mfd: ADD PWM lookup table for CRC PMIC based PWM<o:p></o:p></span></pre>
<pre><span style="color:black"> drivers/pwm: Add Crystalcove (CRC) PWM driver<o:p></o:p></span></pre>
<pre><span style="color:black"> drm/i915: Use the CRC gpio for panel enable/disable<o:p></o:p></span></pre>
<pre><span style="color:black"> drm/i915: Backlight control using CRC PMIC based PWM driver<o:p></o:p></span></pre>
<pre><span style="color:black"><o:p> </o:p></span></pre>
<pre><span style="color:black"> drivers/gpio/gpiolib.c | 13 +++<o:p></o:p></span></pre>
<pre><span style="color:black"> drivers/gpu/drm/i915/intel_drv.h | 5 ++<o:p></o:p></span></pre>
<pre><span style="color:black"> drivers/gpu/drm/i915/intel_dsi.c | 38 ++++++++-<o:p></o:p></span></pre>
<pre><span style="color:black"> drivers/gpu/drm/i915/intel_dsi.h | 6 ++<o:p></o:p></span></pre>
<pre><span style="color:black"> drivers/gpu/drm/i915/intel_panel.c | 92 ++++++++++++++++++--<o:p></o:p></span></pre>
<pre><span style="color:black"> drivers/mfd/intel_soc_pmic_core.c | 29 +++++++<o:p></o:p></span></pre>
<pre><span style="color:black"> drivers/mfd/intel_soc_pmic_crc.c | 3 +<o:p></o:p></span></pre>
<pre><span style="color:black"> drivers/pwm/Kconfig | 7 ++<o:p></o:p></span></pre>
<pre><span style="color:black"> drivers/pwm/Makefile | 1 +<o:p></o:p></span></pre>
<pre><span style="color:black"> drivers/pwm/core.c | 17 ++++<o:p></o:p></span></pre>
<pre><span style="color:black"> drivers/pwm/pwm-crc.c | 171 +++++++++++++++++++++++++++++++++++++<o:p></o:p></span></pre>
<pre><span style="color:black"> include/linux/gpio/machine.h | 1 +<o:p></o:p></span></pre>
<pre><span style="color:black"> include/linux/pwm.h | 5 ++<o:p></o:p></span></pre>
<pre><span style="color:black"> 13 files changed, 381 insertions(+), 7 deletions(-)<o:p></o:p></span></pre>
<pre><span style="color:black"> create mode 100644 drivers/pwm/pwm-crc.c<o:p></o:p></span></pre>
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