linux-kernel - [v2 0/7] Crystalcove (CRC) PMIC based panel and pwm control

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Date:	Mon, 22 Jun 2015 16:24:18 +0530
From:	Shobhit Kumar <shobhit.kumar@...el.com>
To:	linux-pwm <linux-pwm@...r.kernel.org>,
	intel-gfx <intel-gfx@...ts.freedesktop.org>,
	linux-kernel <linux-kernel@...r.kernel.org>,
	dri-devel <dri-devel@...ts.freedesktop.org>,
	linux-gpio <linux-gpio@...r.kernel.org>
Cc:	Paul Bolle <pebolle@...cali.nl>,
	Jani Nikula <jani.nikula@...el.com>,
	Samuel Ortiz <sameo@...ux.intel.com>,
	Alexandre Courbot <gnurou@...il.com>,
	David Airlie <airlied@...ux.ie>,
	Povilas Staniulis <wdmonster@...il.com>,
	Chih-Wei Huang <cwhuang@...roid-x86.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Daniel Vetter <daniel.vetter@...el.com>,
	Lee Jones <lee.jones@...aro.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Paul Gortmaker <paul.gortmaker@...driver.com>,
	bloften80@...il.com, Shobhit Kumar <shobhit.kumar@...el.com>
Subject: [v2 0/7] Crystalcove (CRC) PMIC based panel and pwm control

Hi All,
On some of the BYT devices, for DSI panels, the panel enable/disable signals
and backlight control are done using the Crystalcove PMIC. This series provides
support for the same and has been reviewed earlier on -
https://lkml.org/lkml/2015/4/29/301

This series addresses the review comments with one patch from last set already merged as -
https://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/?id=efb0de55b6a2ec15fc424e660601f22ae2fa487a

Basically following are implemented -

1. GPIO control for panel enable/disable with GFX device as consumer
2. New PWM chip driver added for CRC PMIC based backlight control
3. i915 is modified to use the CRC gpio chip and the CRC PWM chip to do
   backlight control. This is now added in the generic panel backlight
   control infrastructure

All these patches have been tested on AsusT100 and working fine using
/sys/class/backlight/intel_backlight interface.

Patches were also verified on android-x86 tree for AsusT100.

Regards
Shobhit

Shobhit Kumar (7):
  gpiolib: Add support for removing registered consumer lookup table
  mfd: intel_soc_pmic_core: Add lookup table for Panel Control as GPIO
    signal
  mfd: intel_soc_pmic_crc: Add PWM cell device for Crystalcove PMIC
  mfd: intel_soc_pmic_core: ADD PWM lookup table for CRC PMIC based PWM
  pwm: crc: Add Crystalcove (CRC) PWM driver
  drm/i915: Use the CRC gpio for panel enable/disable
  drm/i915: Backlight control using CRC PMIC based PWM driver

 drivers/gpio/gpiolib.c             |  13 ++++
 drivers/gpu/drm/i915/intel_bios.h  |   7 ++
 drivers/gpu/drm/i915/intel_drv.h   |   4 +
 drivers/gpu/drm/i915/intel_dsi.c   |  38 ++++++++-
 drivers/gpu/drm/i915/intel_dsi.h   |   3 +
 drivers/gpu/drm/i915/intel_panel.c |  95 +++++++++++++++++++++--
 drivers/mfd/intel_soc_pmic_core.c  |  29 +++++++
 drivers/mfd/intel_soc_pmic_crc.c   |   3 +
 drivers/pwm/Kconfig                |   7 ++
 drivers/pwm/Makefile               |   1 +
 drivers/pwm/pwm-crc.c              | 155 +++++++++++++++++++++++++++++++++++++
 include/linux/gpio/machine.h       |   1 +
 12 files changed, 349 insertions(+), 7 deletions(-)
 create mode 100644 drivers/pwm/pwm-crc.c

-- 
1.9.1

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
Please read the FAQ at  http://www.tux.org/lkml/