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disp: msm: add io resource collection hook to vm events

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When the TUI use case starts, HLOS prepares for sharing the HW
by collecting the register io spaces and IRQ lines from all the
participating subdrivers before the switch. This change
adds necessary hook in the VM event framework, so that
subdrivers can provide their callback functions while
registering for events. It also adds necessary helpers
in the sde io util to parse and populate the IO memory
region that needs to be shared.

Change-Id: I4c0825fa76453a1c1ec421640deff36158d6ef8c
Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
This commit is contained in:
Jeykumar Sankaran
2020-07-02 12:30:01 -07:00
parent 99df0d5052
commit bd60dce87c
3 changed files with 164 additions and 1 deletions
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7
include/linux/sde_io_util.h
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@@ -85,7 +85,12 @@ struct dss_module_power {
int msm_dss_ioremap_byname(struct platform_device *pdev,
struct dss_io_data *io_data, const char *name);
void msm_dss_iounmap(struct dss_io_data *io_data);
int msm_dss_get_io_mem(struct platform_device *pdev,
struct list_head *mem_list);
void msm_dss_clean_io_mem(struct list_head *mem_list);
int msm_dss_get_io_irq(struct platform_device *pdev,
struct list_head *irq_list, u32 label);
void msm_dss_clean_io_irq(struct list_head *irq_list);
int msm_dss_enable_gpio(struct dss_gpio *in_gpio, int num_gpio, int enable);
int msm_dss_gpio_enable(struct dss_gpio *in_gpio, int num_gpio, int enable);