+
+static inline void
+msmsdcc_disable_clocks(struct msmsdcc_host *host, int deferr)
+{
+ WARN_ON(!host->clks_on);
+
+ BUG_ON(host->curr.mrq);
+
+ if (deferr) {
+ mod_timer(&host->busclk_timer, jiffies + BUSCLK_TIMEOUT);
+ } else {
+ del_timer_sync(&host->busclk_timer);
+ /* Need to check clks_on again in case the busclk
+ * timer fired
+ */
+ if (host->clks_on) {
+ clk_disable(host->clk);
+ clk_disable(host->pclk);
+ host->clks_on = 0;
+ }
+ }
+}
+
+static inline int
+msmsdcc_enable_clocks(struct msmsdcc_host *host)
+{
+ int rc;
+
+ del_timer_sync(&host->busclk_timer);
+
+ if (!host->clks_on) {
+ rc = clk_enable(host->pclk);
+ if (rc)
+ return rc;
+ rc = clk_enable(host->clk);
+ if (rc) {
+ clk_disable(host->pclk);
+ return rc;
+ }
+ udelay(1 + ((3 * USEC_PER_SEC) /
+ (host->clk_rate ? host->clk_rate : msmsdcc_fmin)));
+ host->clks_on = 1;
+ }
+ return 0;
+}
+
+static inline unsigned int
+msmsdcc_readl(struct msmsdcc_host *host, unsigned int reg)
+{
+ return readl(host->base + reg);
+}
+
+static inline void
+msmsdcc_writel(struct msmsdcc_host *host, u32 data, unsigned int reg)
+{
+ writel(data, host->base + reg);
+ /* 3 clk delay required! */
+ udelay(1 + ((3 * USEC_PER_SEC) /
+ (host->clk_rate ? host->clk_rate : msmsdcc_fmin)));
+}
+