Commit 20723353 authored by Paul Walmsley's avatar Paul Walmsley Committed by Russell King

[ARM] OMAP3: move USBHOST SAR handling from clock framework to powerdomain layer

Remove usbhost_sar_fclk from the OMAP3 clock framework.  The bit that
the clock was tweaking doesn't actually enable or disable a clock; it
controls whether the hardware will save and restore USBHOST state
when the powerdomain changes state.  (That happens to coincidentally
enable a clock for the duration of the operation, hence the earlier
confusion.)

In place of the clock, mark the USBHOST powerdomain as supporting
hardware save-and-restore functionality.

linux-omap source commit is f3ceac86a9d425d101d606d87a5af44afef27179.
Signed-off-by: default avatarPaul Walmsley <paul@pwsan.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent 9299fd85
......@@ -209,7 +209,6 @@ static struct omap_clk omap34xx_clks[] = {
CLK(NULL, "usbhost_120m_fck", &usbhost_120m_fck, CK_3430ES2),
CLK(NULL, "usbhost_48m_fck", &usbhost_48m_fck, CK_3430ES2),
CLK(NULL, "usbhost_ick", &usbhost_ick, CK_3430ES2),
CLK(NULL, "usbhost_sar_fck", &usbhost_sar_fck, CK_3430ES2),
CLK(NULL, "usim_fck", &usim_fck, CK_3430ES2),
CLK(NULL, "gpt1_fck", &gpt1_fck, CK_343X),
CLK(NULL, "wkup_32k_fck", &wkup_32k_fck, CK_343X),
......
......@@ -2218,17 +2218,6 @@ static struct clk usbhost_ick = {
.recalc = &followparent_recalc,
};
static struct clk usbhost_sar_fck = {
.name = "usbhost_sar_fck",
.ops = &clkops_omap2_dflt,
.parent = &osc_sys_ck,
.init = &omap2_init_clk_clkdm,
.enable_reg = OMAP_PRM_REGADDR(OMAP3430ES2_USBHOST_MOD, PM_PWSTCTRL),
.enable_bit = OMAP3430ES2_SAVEANDRESTORE_SHIFT,
.clkdm_name = "usbhost_clkdm",
.recalc = &followparent_recalc,
};
/* WKUP */
static const struct clksel_rate usim_96m_rates[] = {
......
......@@ -312,6 +312,7 @@ static struct powerdomain usbhost_pwrdm = {
.sleepdep_srcs = dss_per_usbhost_sleepdeps,
.pwrsts = PWRSTS_OFF_RET_ON,
.pwrsts_logic_ret = PWRDM_POWER_RET,
.flags = PWRDM_HAS_HDWR_SAR, /* for USBHOST ctrlr only */
.banks = 1,
.pwrsts_mem_ret = {
[0] = PWRDM_POWER_RET, /* MEMRETSTATE */
......
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