From: Patrice Chotard patrice.chotard@st.com
Add reset_assert_all() method which Request/Assert/Free an array of resets signal that has been previously successfully requested by reset_get_by_*()
Signed-off-by: Patrice Chotard patrice.chotard@st.com ---
v4: _ add reset_assert_all() method as suggested by Marek Vasut and Simon Glass
drivers/reset/reset-uclass.c | 22 ++++++++++++++++++++++ include/reset.h | 17 +++++++++++++++++ 2 files changed, 39 insertions(+)
diff --git a/drivers/reset/reset-uclass.c b/drivers/reset/reset-uclass.c index ebdeee5..f1ab899 100644 --- a/drivers/reset/reset-uclass.c +++ b/drivers/reset/reset-uclass.c @@ -148,6 +148,28 @@ int reset_deassert(struct reset_ctl *reset_ctl) return ops->rst_deassert(reset_ctl); }
+int reset_assert_all(struct reset_ctl *reset_ctl, int count) +{ + int i, ret; + + for (i = 0; i < count; i++) { + debug("%s(reset_ctl[%d]=%p)\n", __func__, i, &reset_ctl[i]); + + ret = reset_request(&reset_ctl[i]); + if (ret) + return ret; + + ret = reset_assert(&reset_ctl[i]); + if (ret) + return ret; + + ret = reset_free(&reset_ctl[i]); + if (ret) + return ret; + } + return 0; +} + UCLASS_DRIVER(reset) = { .id = UCLASS_RESET, .name = "reset", diff --git a/include/reset.h b/include/reset.h index e8e68b6..fa3b4a4 100644 --- a/include/reset.h +++ b/include/reset.h @@ -155,6 +155,17 @@ int reset_assert(struct reset_ctl *reset_ctl); */ int reset_deassert(struct reset_ctl *reset_ctl);
+/** + * reset_assert_all - Request/Assert/Free resets. + * + * This function will request, assert and free array of clocks, + * + * @reset_ctl: A reset struct array that was previously successfully + * requested by reset_get_by_*(). + * @count Number of reset contained in the array + * @return 0 if OK, or a negative error code. + */ +int reset_assert_all(struct reset_ctl *reset_ctl, int count); #else static inline int reset_get_by_index(struct udevice *dev, int index, struct reset_ctl *reset_ctl) @@ -182,6 +193,12 @@ static inline int reset_deassert(struct reset_ctl *reset_ctl) { return 0; } + +static inline int reset_assert_all(struct reset_ctl *reset_ctl, int count) +{ + return 0; +} + #endif
#endif