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mfd: omap-usb-host: Get clocks based on hardware revision 

Not all revisions have all the clocks so get the necessary clocks
based on hardware revision.

This should avoid un-necessary clk_get failure messages that were
observed earlier.

Also remove the dummy USB host clocks from the OMAP3 clock data.
These are no longer expected by the driver.

Acked-by: Mike Turquette <mturquette@linaro.org> [OMAP3 CLK data]
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Roger Quadros 2014-02-27 16:18:23 +02:00 committed by Lee Jones
parent 61b7025f6d
commit 3aca446acf
3 changed files with 33 additions and 20 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/arm/mach-omap2/cclock3xxx_data.c
View File

@ -3495,10 +3495,6 @@ static struct omap_clk omap3xxx_clks[] = {
CLK(NULL, "dss_tv_fck", &dss_tv_fck),
CLK(NULL, "dss_96m_fck", &dss_96m_fck),
CLK(NULL, "dss2_alwon_fck", &dss2_alwon_fck),
CLK(NULL, "utmi_p1_gfclk", &dummy_ck),
CLK(NULL, "utmi_p2_gfclk", &dummy_ck),
CLK(NULL, "xclk60mhsp1_ck", &dummy_ck),
CLK(NULL, "xclk60mhsp2_ck", &dummy_ck),
CLK(NULL, "init_60m_fclk", &dummy_ck),
CLK(NULL, "gpt1_fck", &gpt1_fck),
CLK(NULL, "aes2_ick", &aes2_ick),

4
drivers/clk/ti/clk-3xxx.c
View File

@ -130,10 +130,6 @@ static struct ti_dt_clk omap3xxx_clks[] = {
DT_CLK(NULL, "dss_tv_fck", "dss_tv_fck"),
DT_CLK(NULL, "dss_96m_fck", "dss_96m_fck"),
DT_CLK(NULL, "dss2_alwon_fck", "dss2_alwon_fck"),
DT_CLK(NULL, "utmi_p1_gfclk", "dummy_ck"),
DT_CLK(NULL, "utmi_p2_gfclk", "dummy_ck"),
DT_CLK(NULL, "xclk60mhsp1_ck", "dummy_ck"),
DT_CLK(NULL, "xclk60mhsp2_ck", "dummy_ck"),
DT_CLK(NULL, "init_60m_fclk", "dummy_ck"),
DT_CLK(NULL, "gpt1_fck", "gpt1_fck"),
DT_CLK(NULL, "aes2_ick", "aes2_ick"),

45
drivers/mfd/omap-usb-host.c
View File

@ -665,22 +665,43 @@ static int usbhs_omap_probe(struct platform_device *pdev)
goto err_mem;
}
need_logic_fck = false;
/* Set all clocks as invalid to begin with */
omap->ehci_logic_fck = ERR_PTR(-ENODEV);
omap->init_60m_fclk = ERR_PTR(-ENODEV);
omap->utmi_p1_gfclk = ERR_PTR(-ENODEV);
omap->utmi_p2_gfclk = ERR_PTR(-ENODEV);
omap->xclk60mhsp1_ck = ERR_PTR(-ENODEV);
omap->xclk60mhsp2_ck = ERR_PTR(-ENODEV);
for (i = 0; i < omap->nports; i++) {
if (is_ehci_phy_mode(i) || is_ehci_tll_mode(i) ||
is_ehci_hsic_mode(i))
omap->utmi_clk[i] = ERR_PTR(-ENODEV);
omap->hsic480m_clk[i] = ERR_PTR(-ENODEV);
omap->hsic60m_clk[i] = ERR_PTR(-ENODEV);
}
/* for OMAP3 i.e. USBHS REV1 */
if (omap->usbhs_rev == OMAP_USBHS_REV1) {
need_logic_fck = false;
for (i = 0; i < omap->nports; i++) {
if (is_ehci_phy_mode(pdata->port_mode[i]) ||
is_ehci_tll_mode(pdata->port_mode[i]) ||
is_ehci_hsic_mode(pdata->port_mode[i]))
need_logic_fck |= true;
}
omap->ehci_logic_fck = ERR_PTR(-EINVAL);
if (need_logic_fck) {
omap->ehci_logic_fck = devm_clk_get(dev, "ehci_logic_fck");
if (IS_ERR(omap->ehci_logic_fck)) {
ret = PTR_ERR(omap->ehci_logic_fck);
dev_dbg(dev, "ehci_logic_fck failed:%d\n", ret);
}
if (need_logic_fck) {
omap->ehci_logic_fck = devm_clk_get(dev,
"ehci_logic_fck");
if (IS_ERR(omap->ehci_logic_fck)) {
ret = PTR_ERR(omap->ehci_logic_fck);
dev_dbg(dev, "ehci_logic_fck failed:%d\n", ret);
}
}
goto initialize;
}
/* for OMAP4+ i.e. USBHS REV2+ */
omap->utmi_p1_gfclk = devm_clk_get(dev, "utmi_p1_gfclk");
if (IS_ERR(omap->utmi_p1_gfclk)) {
ret = PTR_ERR(omap->utmi_p1_gfclk);
@ -748,7 +769,6 @@ static int usbhs_omap_probe(struct platform_device *pdev)
}
if (is_ehci_phy_mode(pdata->port_mode[0])) {
/* for OMAP3, clk_set_parent fails */
ret = clk_set_parent(omap->utmi_p1_gfclk,
omap->xclk60mhsp1_ck);
if (ret != 0)
@ -776,6 +796,7 @@ static int usbhs_omap_probe(struct platform_device *pdev)
ret);
}
initialize:
omap_usbhs_init(dev);
if (dev->of_node) {