diff options
Diffstat (limited to 'drivers/clk/rockchip/clk-mmc-phase.c')
| -rw-r--r-- | drivers/clk/rockchip/clk-mmc-phase.c | 25 |
1 files changed, 7 insertions, 18 deletions
diff --git a/drivers/clk/rockchip/clk-mmc-phase.c b/drivers/clk/rockchip/clk-mmc-phase.c index 026a26bb702d..4abe7ff31f53 100644 --- a/drivers/clk/rockchip/clk-mmc-phase.c +++ b/drivers/clk/rockchip/clk-mmc-phase.c @@ -1,16 +1,7 @@ +// SPDX-License-Identifier: GPL-2.0-or-later /* * Copyright 2014 Google, Inc * Author: Alexandru M Stan <amstan@chromium.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. */ #include <linux/slab.h> @@ -55,29 +46,27 @@ static unsigned long rockchip_mmc_recalc(struct clk_hw *hw, static int rockchip_mmc_get_phase(struct clk_hw *hw) { struct rockchip_mmc_clock *mmc_clock = to_mmc_clock(hw); - unsigned long rate = clk_get_rate(hw->clk); + unsigned long rate = clk_hw_get_rate(hw); u32 raw_value; u16 degrees; u32 delay_num = 0; /* See the comment for rockchip_mmc_set_phase below */ - if (!rate) { - pr_err("%s: invalid clk rate\n", __func__); + if (!rate) return -EINVAL; - } raw_value = readl(mmc_clock->reg) >> (mmc_clock->shift); degrees = (raw_value & ROCKCHIP_MMC_DEGREE_MASK) * 90; if (raw_value & ROCKCHIP_MMC_DELAY_SEL) { - /* degrees/delaynum * 10000 */ + /* degrees/delaynum * 1000000 */ unsigned long factor = (ROCKCHIP_MMC_DELAY_ELEMENT_PSEC / 10) * - 36 * (rate / 1000000); + 36 * (rate / 10000); delay_num = (raw_value & ROCKCHIP_MMC_DELAYNUM_MASK); delay_num >>= ROCKCHIP_MMC_DELAYNUM_OFFSET; - degrees += DIV_ROUND_CLOSEST(delay_num * factor, 10000); + degrees += DIV_ROUND_CLOSEST(delay_num * factor, 1000000); } return degrees % 360; @@ -86,7 +75,7 @@ static int rockchip_mmc_get_phase(struct clk_hw *hw) static int rockchip_mmc_set_phase(struct clk_hw *hw, int degrees) { struct rockchip_mmc_clock *mmc_clock = to_mmc_clock(hw); - unsigned long rate = clk_get_rate(hw->clk); + unsigned long rate = clk_hw_get_rate(hw); u8 nineties, remainder; u8 delay_num; u32 raw_value; |