clk_get_rate throws DEBUG_LOCKS_WARN_ON(in_interrupt()) warning
if called from interrupt context.
use cached clock rate in set_data_timeout, so that
set_data_timeout can be called from interrupt context.
Signed-off-by: Balaji T K <balajitk@xxxxxx>
---
drivers/mmc/host/omap_hsmmc.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index dbd32ad..8d0048d 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -188,6 +188,7 @@ struct omap_hsmmc_host {
int reqs_blocked;
int use_reg;
int req_in_progress;
+ unsigned long clk_rate;
struct omap_hsmmc_next next_data;
struct omap_mmc_platform_data *pdata;
};
@@ -1338,7 +1339,7 @@ static void set_data_timeout(struct omap_hsmmc_host *host,
if (clkd == 0)
clkd = 1;
- cycle_ns = 1000000000 / (clk_get_rate(host->fclk) / clkd);
+ cycle_ns = 1000000000 / (host->clk_rate / clkd);
timeout = timeout_ns / cycle_ns;
timeout += timeout_clks;
if (timeout) {
@@ -1462,6 +1463,7 @@ static void omap_hsmmc_request(struct mmc_host *mmc, struct mmc_request *req)
host->reqs_blocked = 0;
WARN_ON(host->mrq != NULL);
host->mrq = req;
+ host->clk_rate = clk_get_rate(host->fclk);
err = omap_hsmmc_prepare_data(host, req);
if (err) {
req->cmd->error = err;
--
1.7.5.4
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