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path: root/drivers/gpu/drm/msm/dsi/pll/dsi_pll.c
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Diffstat (limited to 'drivers/gpu/drm/msm/dsi/pll/dsi_pll.c')
-rw-r--r--drivers/gpu/drm/msm/dsi/pll/dsi_pll.c184
1 files changed, 0 insertions, 184 deletions
diff --git a/drivers/gpu/drm/msm/dsi/pll/dsi_pll.c b/drivers/gpu/drm/msm/dsi/pll/dsi_pll.c
deleted file mode 100644
index 3dc65877fa10..000000000000
--- a/drivers/gpu/drm/msm/dsi/pll/dsi_pll.c
+++ /dev/null
@@ -1,184 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2012-2015, The Linux Foundation. All rights reserved.
- */
-
-#include "dsi_pll.h"
-
-static int dsi_pll_enable(struct msm_dsi_pll *pll)
-{
- int i, ret = 0;
-
- /*
- * Certain PLLs do not allow VCO rate update when it is on.
- * Keep track of their status to turn on/off after set rate success.
- */
- if (unlikely(pll->pll_on))
- return 0;
-
- /* Try all enable sequences until one succeeds */
- for (i = 0; i < pll->en_seq_cnt; i++) {
- ret = pll->enable_seqs[i](pll);
- DBG("DSI PLL %s after sequence #%d",
- ret ? "unlocked" : "locked", i + 1);
- if (!ret)
- break;
- }
-
- if (ret) {
- DRM_ERROR("DSI PLL failed to lock\n");
- return ret;
- }
-
- pll->pll_on = true;
-
- return 0;
-}
-
-static void dsi_pll_disable(struct msm_dsi_pll *pll)
-{
- if (unlikely(!pll->pll_on))
- return;
-
- pll->disable_seq(pll);
-
- pll->pll_on = false;
-}
-
-/*
- * DSI PLL Helper functions
- */
-long msm_dsi_pll_helper_clk_round_rate(struct clk_hw *hw,
- unsigned long rate, unsigned long *parent_rate)
-{
- struct msm_dsi_pll *pll = hw_clk_to_pll(hw);
-
- if (rate < pll->min_rate)
- return pll->min_rate;
- else if (rate > pll->max_rate)
- return pll->max_rate;
- else
- return rate;
-}
-
-int msm_dsi_pll_helper_clk_prepare(struct clk_hw *hw)
-{
- struct msm_dsi_pll *pll = hw_clk_to_pll(hw);
-
- return dsi_pll_enable(pll);
-}
-
-void msm_dsi_pll_helper_clk_unprepare(struct clk_hw *hw)
-{
- struct msm_dsi_pll *pll = hw_clk_to_pll(hw);
-
- dsi_pll_disable(pll);
-}
-
-void msm_dsi_pll_helper_unregister_clks(struct platform_device *pdev,
- struct clk **clks, u32 num_clks)
-{
- of_clk_del_provider(pdev->dev.of_node);
-
- if (!num_clks || !clks)
- return;
-
- do {
- clk_unregister(clks[--num_clks]);
- clks[num_clks] = NULL;
- } while (num_clks);
-}
-
-/*
- * DSI PLL API
- */
-int msm_dsi_pll_get_clk_provider(struct msm_dsi_pll *pll,
- struct clk **byte_clk_provider, struct clk **pixel_clk_provider)
-{
- if (pll->get_provider)
- return pll->get_provider(pll,
- byte_clk_provider,
- pixel_clk_provider);
-
- return -EINVAL;
-}
-
-void msm_dsi_pll_destroy(struct msm_dsi_pll *pll)
-{
- if (pll->destroy)
- pll->destroy(pll);
-}
-
-void msm_dsi_pll_save_state(struct msm_dsi_pll *pll)
-{
- if (pll->save_state) {
- pll->save_state(pll);
- pll->state_saved = true;
- }
-}
-
-int msm_dsi_pll_restore_state(struct msm_dsi_pll *pll)
-{
- int ret;
-
- if (pll->restore_state && pll->state_saved) {
- ret = pll->restore_state(pll);
- if (ret)
- return ret;
-
- pll->state_saved = false;
- }
-
- return 0;
-}
-
-int msm_dsi_pll_set_usecase(struct msm_dsi_pll *pll,
- enum msm_dsi_phy_usecase uc)
-{
- if (pll->set_usecase)
- return pll->set_usecase(pll, uc);
-
- return 0;
-}
-
-struct msm_dsi_pll *msm_dsi_pll_init(struct platform_device *pdev,
- enum msm_dsi_phy_type type, int id)
-{
- struct device *dev = &pdev->dev;
- struct msm_dsi_pll *pll;
-
- switch (type) {
- case MSM_DSI_PHY_28NM_HPM:
- case MSM_DSI_PHY_28NM_LP:
- pll = msm_dsi_pll_28nm_init(pdev, type, id);
- break;
- case MSM_DSI_PHY_28NM_8960:
- pll = msm_dsi_pll_28nm_8960_init(pdev, id);
- break;
- case MSM_DSI_PHY_14NM:
- pll = msm_dsi_pll_14nm_init(pdev, id);
- break;
- case MSM_DSI_PHY_10NM:
- pll = msm_dsi_pll_10nm_init(pdev, id);
- break;
- case MSM_DSI_PHY_7NM:
- case MSM_DSI_PHY_7NM_V4_1:
- pll = msm_dsi_pll_7nm_init(pdev, type, id);
- break;
- default:
- pll = ERR_PTR(-ENXIO);
- break;
- }
-
- if (IS_ERR(pll)) {
- DRM_DEV_ERROR(dev, "%s: failed to init DSI PLL\n", __func__);
- return pll;
- }
-
- pll->type = type;
-
- DBG("DSI:%d PLL registered", id);
-
- return pll;
-}
-