This is an example which shows how to use new 'shared modulemode' flag.
DSS hwmods share the MODULEMODE field. Add the new HWMOD_OMAP4_MODULEMODE_SHARED
flag, and create a modulemode_shared struct which the DSS hwmods refer to.
This will allow the hwmods to reset properly during boot, and not break things
when the DSS driver runs.
(Note: hdmi and rfbi hwmods still don't reset properly as they don't have their
mainclks as dss_dss_clk, this will be fixed later).
Signed-off-by: Archit Taneja <arc...@ti.com>
---
arch/arm/mach-omap2/omap_hwmod_54xx_data.c | 46 +++++++++++++++++++++---------
1 file changed, 33 insertions(+), 13 deletions(-)
diff --git a/arch/arm/mach-omap2/omap_hwmod_54xx_data.c
b/arch/arm/mach-omap2/omap_hwmod_54xx_data.c
index e8bdd7a..762d61f 100644
--- a/arch/arm/mach-omap2/omap_hwmod_54xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_54xx_data.c
@@ -337,6 +337,9 @@ static struct omap_hwmod omap54xx_dmic_hwmod = {
* 'dss' class
* display sub-system
*/
+
+static struct modulemode_shared dss_modulemode_ref;
+
static struct omap_hwmod_class_sysconfig omap54xx_dss_sysc = {
.rev_offs = 0x0000,
.syss_offs = 0x0014,
@@ -364,9 +367,11 @@ static struct omap_hwmod omap54xx_dss_hwmod = {
.main_clk = "dss_dss_clk",
.prcm = {
.omap4 = {
- .clkctrl_offs = OMAP54XX_CM_DSS_DSS_CLKCTRL_OFFSET,
- .context_offs = OMAP54XX_RM_DSS_DSS_CONTEXT_OFFSET,
- .modulemode = MODULEMODE_SWCTRL,
+ .clkctrl_offs = OMAP54XX_CM_DSS_DSS_CLKCTRL_OFFSET,
+ .context_offs = OMAP54XX_RM_DSS_DSS_CONTEXT_OFFSET,
+ .modulemode = MODULEMODE_SWCTRL,
+ .flags = HWMOD_OMAP4_MODULEMODE_SHARED,
+ .modulemode_ref = &dss_modulemode_ref,
},
},
.opt_clks = dss_opt_clks,
@@ -414,8 +419,11 @@ static struct omap_hwmod omap54xx_dss_dispc_hwmod = {
.main_clk = "dss_dss_clk",
.prcm = {
.omap4 = {
- .clkctrl_offs = OMAP54XX_CM_DSS_DSS_CLKCTRL_OFFSET,
- .flags = HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT,
+ .clkctrl_offs = OMAP54XX_CM_DSS_DSS_CLKCTRL_OFFSET,
+ .flags = HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT |
+ HWMOD_OMAP4_MODULEMODE_SHARED,
+ .modulemode = MODULEMODE_SWCTRL,
+ .modulemode_ref = &dss_modulemode_ref,
},
},
.opt_clks = dss_dispc_opt_clks,
@@ -456,8 +464,11 @@ static struct omap_hwmod omap54xx_dss_dsi1_a_hwmod = {
.main_clk = "dss_dss_clk",
.prcm = {
.omap4 = {
- .clkctrl_offs = OMAP54XX_CM_DSS_DSS_CLKCTRL_OFFSET,
- .flags = HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT,
+ .clkctrl_offs = OMAP54XX_CM_DSS_DSS_CLKCTRL_OFFSET,
+ .flags = HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT |
+ HWMOD_OMAP4_MODULEMODE_SHARED,
+ .modulemode = MODULEMODE_SWCTRL,
+ .modulemode_ref = &dss_modulemode_ref,
},
},
.opt_clks = dss_dsi1_a_opt_clks,
@@ -476,8 +487,11 @@ static struct omap_hwmod omap54xx_dss_dsi1_c_hwmod = {
.main_clk = "dss_dss_clk",
.prcm = {
.omap4 = {
- .clkctrl_offs = OMAP54XX_CM_DSS_DSS_CLKCTRL_OFFSET,
- .flags = HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT,
+ .clkctrl_offs = OMAP54XX_CM_DSS_DSS_CLKCTRL_OFFSET,
+ .flags = HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT |
+ HWMOD_OMAP4_MODULEMODE_SHARED,
+ .modulemode = MODULEMODE_SWCTRL,
+ .modulemode_ref = &dss_modulemode_ref,
},
},
.opt_clks = dss_dsi1_c_opt_clks,
@@ -515,8 +529,11 @@ static struct omap_hwmod omap54xx_dss_hdmi_hwmod = {
.main_clk = "dss_48mhz_clk",
.prcm = {
.omap4 = {
- .clkctrl_offs = OMAP54XX_CM_DSS_DSS_CLKCTRL_OFFSET,
- .flags = HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT,
+ .clkctrl_offs = OMAP54XX_CM_DSS_DSS_CLKCTRL_OFFSET,
+ .flags = HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT |
+ HWMOD_OMAP4_MODULEMODE_SHARED,
+ .modulemode = MODULEMODE_SWCTRL,
+ .modulemode_ref = &dss_modulemode_ref,
},
},
.opt_clks = dss_hdmi_opt_clks,
@@ -554,8 +571,11 @@ static struct omap_hwmod omap54xx_dss_rfbi_hwmod = {
.clkdm_name = "dss_clkdm",
.prcm = {
.omap4 = {
- .clkctrl_offs = OMAP54XX_CM_DSS_DSS_CLKCTRL_OFFSET,
- .flags = HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT,
+ .clkctrl_offs = OMAP54XX_CM_DSS_DSS_CLKCTRL_OFFSET,
+ .flags = HWMOD_OMAP4_NO_CONTEXT_LOSS_BIT |
+ HWMOD_OMAP4_MODULEMODE_SHARED,
+ .modulemode = MODULEMODE_SWCTRL,
+ .modulemode_ref = &dss_modulemode_ref,
},
},
.opt_clks = dss_rfbi_opt_clks,
--
1.8.3.2
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