diff options
author | Stephen Boyd <sboyd@codeaurora.org> | 2014-01-15 22:47:27 +0400 |
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committer | Mike Turquette <mturquette@linaro.org> | 2014-01-17 00:01:02 +0400 |
commit | b36ba30c8ac66249915c57be101180cc58c42085 (patch) | |
tree | 4dc542affa7a2a416e8f62f88f0adb16b6ba937f /drivers/clk/qcom/reset.h | |
parent | 6e0ad1b6c1c9809a8ea9ca647cbc0471e8b4164d (diff) | |
download | linux-b36ba30c8ac66249915c57be101180cc58c42085.tar.xz |
clk: qcom: Add reset controller support
Reset controllers and clock controllers are combined into one IP
block on Qualcomm chipsets. Usually a reset signal is associated
with each clock branch but sometimes a reset signal is associated
with a handful of clocks. Either way the register interface is
the same; set a bit to assert a reset and clear a bit to deassert
a reset. Add support for these types of resets signals.
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Diffstat (limited to 'drivers/clk/qcom/reset.h')
-rw-r--r-- | drivers/clk/qcom/reset.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/clk/qcom/reset.h b/drivers/clk/qcom/reset.h new file mode 100644 index 000000000000..0e11e2130f97 --- /dev/null +++ b/drivers/clk/qcom/reset.h @@ -0,0 +1,37 @@ +/* + * Copyright (c) 2013, The Linux Foundation. All rights reserved. + * + * This software is licensed under the terms of the GNU General Public + * License version 2, as published by the Free Software Foundation, and + * may be copied, distributed, and modified under those terms. + * + * 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. + */ + +#ifndef __QCOM_CLK_RESET_H__ +#define __QCOM_CLK_RESET_H__ + +#include <linux/reset-controller.h> + +struct qcom_reset_map { + unsigned int reg; + u8 bit; +}; + +struct regmap; + +struct qcom_reset_controller { + const struct qcom_reset_map *reset_map; + struct regmap *regmap; + struct reset_controller_dev rcdev; +}; + +#define to_qcom_reset_controller(r) \ + container_of(r, struct qcom_reset_controller, rcdev); + +extern struct reset_control_ops qcom_reset_ops; + +#endif |