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path: root/drivers/gpu/drm/msm/edp/edp_phy.c
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Diffstat (limited to 'drivers/gpu/drm/msm/edp/edp_phy.c')
-rw-r--r--drivers/gpu/drm/msm/edp/edp_phy.c98
1 files changed, 0 insertions, 98 deletions
diff --git a/drivers/gpu/drm/msm/edp/edp_phy.c b/drivers/gpu/drm/msm/edp/edp_phy.c
deleted file mode 100644
index fcaf7b7ecdd2..000000000000
--- a/drivers/gpu/drm/msm/edp/edp_phy.c
+++ /dev/null
@@ -1,98 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright (c) 2014-2015, The Linux Foundation. All rights reserved.
- */
-
-#include "edp.h"
-#include "edp.xml.h"
-
-#define EDP_MAX_LANE 4
-
-struct edp_phy {
- void __iomem *base;
-};
-
-bool msm_edp_phy_ready(struct edp_phy *phy)
-{
- u32 status;
- int cnt = 100;
-
- while (--cnt) {
- status = edp_read(phy->base +
- REG_EDP_PHY_GLB_PHY_STATUS);
- if (status & 0x01)
- break;
- usleep_range(500, 1000);
- }
-
- if (cnt == 0) {
- pr_err("%s: PHY NOT ready\n", __func__);
- return false;
- } else {
- return true;
- }
-}
-
-void msm_edp_phy_ctrl(struct edp_phy *phy, int enable)
-{
- DBG("enable=%d", enable);
- if (enable) {
- /* Reset */
- edp_write(phy->base + REG_EDP_PHY_CTRL,
- EDP_PHY_CTRL_SW_RESET | EDP_PHY_CTRL_SW_RESET_PLL);
- /* Make sure fully reset */
- wmb();
- usleep_range(500, 1000);
- edp_write(phy->base + REG_EDP_PHY_CTRL, 0x000);
- edp_write(phy->base + REG_EDP_PHY_GLB_PD_CTL, 0x3f);
- edp_write(phy->base + REG_EDP_PHY_GLB_CFG, 0x1);
- } else {
- edp_write(phy->base + REG_EDP_PHY_GLB_PD_CTL, 0xc0);
- }
-}
-
-/* voltage mode and pre emphasis cfg */
-void msm_edp_phy_vm_pe_init(struct edp_phy *phy)
-{
- edp_write(phy->base + REG_EDP_PHY_GLB_VM_CFG0, 0x3);
- edp_write(phy->base + REG_EDP_PHY_GLB_VM_CFG1, 0x64);
- edp_write(phy->base + REG_EDP_PHY_GLB_MISC9, 0x6c);
-}
-
-void msm_edp_phy_vm_pe_cfg(struct edp_phy *phy, u32 v0, u32 v1)
-{
- edp_write(phy->base + REG_EDP_PHY_GLB_VM_CFG0, v0);
- edp_write(phy->base + REG_EDP_PHY_GLB_VM_CFG1, v1);
-}
-
-void msm_edp_phy_lane_power_ctrl(struct edp_phy *phy, bool up, u32 max_lane)
-{
- u32 i;
- u32 data;
-
- if (up)
- data = 0; /* power up */
- else
- data = 0x7; /* power down */
-
- for (i = 0; i < max_lane; i++)
- edp_write(phy->base + REG_EDP_PHY_LN_PD_CTL(i) , data);
-
- /* power down unused lane */
- data = 0x7; /* power down */
- for (i = max_lane; i < EDP_MAX_LANE; i++)
- edp_write(phy->base + REG_EDP_PHY_LN_PD_CTL(i) , data);
-}
-
-void *msm_edp_phy_init(struct device *dev, void __iomem *regbase)
-{
- struct edp_phy *phy = NULL;
-
- phy = devm_kzalloc(dev, sizeof(*phy), GFP_KERNEL);
- if (!phy)
- return NULL;
-
- phy->base = regbase;
- return phy;
-}
-