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disp: msm: dsi: rework DSI PLL to be configured within PHY

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Change avoids clock framework APIs to configure the DSI PHY
PLL. It follows HW recommendation to set the byte and pclk
dividers.

Change-Id: I8c110f3997e4ec4c2eaa28778b70091855725ab8
Signed-off-by: Satya Rama Aditya Pinapala <psraditya30@codeaurora.org>
This commit is contained in:
Satya Rama Aditya Pinapala
2020-01-25 14:25:11 -08:00
parent 819630e6b0
commit 0a93edbae6
16 changed files with 1176 additions and 4197 deletions
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49
msm/dsi/dsi_phy.c
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@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (c) 2016-2020, The Linux Foundation. All rights reserved.
* Copyright (c) 2016-2021, The Linux Foundation. All rights reserved.
*/
#include <linux/of_device.h>
@@ -461,6 +461,14 @@ static int dsi_phy_driver_probe(struct platform_device *pdev)
goto fail_settings;
}
rc = dsi_catalog_phy_pll_setup(&dsi_phy->hw,
dsi_phy->pll->pll_revision);
if (rc) {
DSI_PHY_ERR(dsi_phy, "Catalog does not support PLL version (%d)\n",
dsi_phy->pll->pll_revision);
goto fail_settings;
}
item->phy = dsi_phy;
mutex_lock(&dsi_phy_list_lock);
@@ -760,6 +768,45 @@ error:
return rc;
}
/**
* dsi_phy_configure() - Configure DSI PHY PLL
* @dsi_phy: DSI PHY handle.
* @commit: boolean to specify if calculated PHY configuration
* needs to be committed. Set to false in case of
* dynamic clock switch.
*
* Return: error code.
*/
int dsi_phy_configure(struct msm_dsi_phy *phy, bool commit)
{
int rc = 0;
phy->pll->type = phy->cfg.phy_type;
phy->pll->bpp = dsi_pixel_format_to_bpp(phy->dst_format);
phy->pll->lanes = dsi_get_num_of_data_lanes(phy->data_lanes);
if (phy->hw.ops.configure)
rc = phy->hw.ops.configure(phy->pll, commit);
return rc;
}
/**
* dsi_phy_pll_toggle() - Toggle DSI PHY PLL
* @dsi_phy: DSI PHY handle.
* @prepare: specifies if PLL needs to be turned on or not.
*
* Return: error code.
*/
int dsi_phy_pll_toggle(struct msm_dsi_phy *phy, bool prepare)
{
int rc = 0;
if (phy->hw.ops.pll_toggle)
rc = phy->hw.ops.pll_toggle(phy->pll, prepare);
return rc;
}
static int dsi_phy_enable_ulps(struct msm_dsi_phy *phy,
struct dsi_host_config *config, bool clamp_enabled)
{