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 <[email protected]> --- 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 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
