phy: mediatek: mipi: remove register access helpers

Remove private register access helpers, use the common ones instead.
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20220920090038.15133-19-chunfeng.yun@mediatek.comSigned-off-by: Vinod Koul <vkoul@kernel.org>

drivers/phy/mediatek/phy-mtk-mipi-dsi.c

@@ -10,30 +10,6 @@ inline struct mtk_mipi_tx *mtk_mipi_tx_from_clk_hw(struct clk_hw *hw)
 	return container_of(hw, struct mtk_mipi_tx, pll_hw);
 }
 
-void mtk_mipi_tx_clear_bits(struct mtk_mipi_tx *mipi_tx, u32 offset,
-			    u32 bits)
-{
-	u32 temp = readl(mipi_tx->regs + offset);
-
-	writel(temp & ~bits, mipi_tx->regs + offset);
-}
-
-void mtk_mipi_tx_set_bits(struct mtk_mipi_tx *mipi_tx, u32 offset,
-			  u32 bits)
-{
-	u32 temp = readl(mipi_tx->regs + offset);
-
-	writel(temp | bits, mipi_tx->regs + offset);
-}
-
-void mtk_mipi_tx_update_bits(struct mtk_mipi_tx *mipi_tx, u32 offset,
-			     u32 mask, u32 data)
-{
-	u32 temp = readl(mipi_tx->regs + offset);
-
-	writel((temp & ~mask) | (data & mask), mipi_tx->regs + offset);
-}
-
 int mtk_mipi_tx_pll_set_rate(struct clk_hw *hw, unsigned long rate,
 			     unsigned long parent_rate)
 {

drivers/phy/mediatek/phy-mtk-mipi-dsi.h

@@ -10,7 +10,6 @@
 #include <linux/clk.h>
 #include <linux/clk-provider.h>
 #include <linux/delay.h>
-#include <linux/io.h>
 #include <linux/module.h>
 #include <linux/nvmem-consumer.h>
 #include <linux/of_device.h>
@@ -37,10 +36,6 @@ struct mtk_mipi_tx {
 };
 
 struct mtk_mipi_tx *mtk_mipi_tx_from_clk_hw(struct clk_hw *hw);
-void mtk_mipi_tx_clear_bits(struct mtk_mipi_tx *mipi_tx, u32 offset, u32 bits);
-void mtk_mipi_tx_set_bits(struct mtk_mipi_tx *mipi_tx, u32 offset, u32 bits);
-void mtk_mipi_tx_update_bits(struct mtk_mipi_tx *mipi_tx, u32 offset, u32 mask,
-			     u32 data);
 int mtk_mipi_tx_pll_set_rate(struct clk_hw *hw, unsigned long rate,
 			     unsigned long parent_rate);
 unsigned long mtk_mipi_tx_pll_recalc_rate(struct clk_hw *hw,