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author | Chandan Uddaraju <chandanu@codeaurora.org> | 2020-08-28 00:16:55 +0300 |
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committer | Rob Clark <robdclark@chromium.org> | 2020-09-15 20:54:34 +0300 |
commit | c943b4948b5848fc0e07f875edbd35a973879e22 (patch) | |
tree | bd5c293057f2da48823bac8fb6466c120da5091f /drivers/gpu/drm/msm/dp/dp_power.h | |
parent | b22960b8f274382ff165db50faebbde5f8a16c32 (diff) | |
download | linux-c943b4948b5848fc0e07f875edbd35a973879e22.tar.xz |
drm/msm/dp: add displayPort driver support
Add the needed displayPort files to enable DP driver
on msm target.
"dp_display" module is the main module that calls into
other sub-modules. "dp_drm" file represents the interface
between DRM framework and DP driver.
Changes in v12:
-- Add support of pm ops in display port driver
-- Clear bpp depth bits before writing to MISC register
-- Fix edid read
Previous Change log:
https://lkml.kernel.org/lkml/20200818051137.21478-3-tanmay@codeaurora.org/
Signed-off-by: Chandan Uddaraju <chandanu@codeaurora.org>
Signed-off-by: Vara Reddy <varar@codeaurora.org>
Signed-off-by: Tanmay Shah <tanmay@codeaurora.org>
Co-developed-by: Abhinav Kumar <abhinavk@codeaurora.org>
Signed-off-by: Abhinav Kumar <abhinavk@codeaurora.org>
Co-developed-by: Kuogee Hsieh <khsieh@codeaurora.org>
Signed-off-by: Kuogee Hsieh <khsieh@codeaurora.org>
Co-developed-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Guenter Roeck <groeck@chromium.org>
Co-developed-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
Diffstat (limited to 'drivers/gpu/drm/msm/dp/dp_power.h')
-rw-r--r-- | drivers/gpu/drm/msm/dp/dp_power.h | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/dp/dp_power.h b/drivers/gpu/drm/msm/dp/dp_power.h new file mode 100644 index 000000000000..ae55b78bf54a --- /dev/null +++ b/drivers/gpu/drm/msm/dp/dp_power.h @@ -0,0 +1,65 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (c) 2012-2020, The Linux Foundation. All rights reserved. + */ + +#ifndef _DP_POWER_H_ +#define _DP_POWER_H_ + +#include "dp_parser.h" + +/** + * sruct dp_power - DisplayPort's power related data + * + * @init: initializes the regulators/core clocks/GPIOs/pinctrl + * @deinit: turns off the regulators/core clocks/GPIOs/pinctrl + * @clk_enable: enable/disable the DP clocks + * @set_link_clk_parent: set the parent of DP link clock + * @set_pixel_clk_parent: set the parent of DP pixel clock + */ +struct dp_power { + bool core_clks_on; + bool link_clks_on; +}; + +int dp_power_init(struct dp_power *power, bool flip); +int dp_power_deinit(struct dp_power *power); +int dp_power_clk_enable(struct dp_power *power, enum dp_pm_type pm_type, + bool enable); +int dp_power_set_link_clk_parent(struct dp_power *power); + +/** + * dp_power_client_init() - initialize clock and regulator modules + * + * @power: instance of power module + * return: 0 for success, error for failure. + * + * This API will configure the DisplayPort's clocks and regulator + * modules. + */ +int dp_power_client_init(struct dp_power *power); + +/** + * dp_power_clinet_deinit() - de-initialize clock and regulator modules + * + * @power: instance of power module + * return: 0 for success, error for failure. + * + * This API will de-initialize the DisplayPort's clocks and regulator + * modueles. + */ +void dp_power_client_deinit(struct dp_power *power); + +/** + * dp_power_get() - configure and get the DisplayPort power module data + * + * @parser: instance of parser module + * return: pointer to allocated power module data + * + * This API will configure the DisplayPort's power module and provides + * methods to be called by the client to configure the power related + * modueles. + */ +struct dp_power *dp_power_get(struct dp_parser *parser); + +#endif /* _DP_POWER_H_ */ |