evie/android_kernel_oneplus_msm8998
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uio: msm_sharedmem: Add stub shutdown function

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A stub shutdown function is added as the default
implementation. This function is used by targets
that do not need to free their memory when the
driver is shutdown.

Change-Id: I073cda4fee7a1c6c34c5ba72d9ba73478ef2d90d
Signed-off-by: Anant Goel <anantg@codeaurora.org>
This commit is contained in:
Anant Goel 2018-08-03 23:12:17 -07:00
parent 42570c93ec
commit ca463d4e79
1 changed files with 8 additions and 0 deletions
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8
drivers/uio/msm_sharedmem/msm_sharedmem.c
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@ -75,6 +75,7 @@ static int sharedmem_mmap(struct uio_info *info, struct vm_area_struct *vma)
return result; return result;
} }
#ifdef CONFIG_MSM_GVM_QUIN
static void free_shared_ram_perms(u32 client_id, phys_addr_t addr, u32 size) static void free_shared_ram_perms(u32 client_id, phys_addr_t addr, u32 size)
{ {
int ret; int ret;
@ -92,6 +93,7 @@ static void free_shared_ram_perms(u32 client_id, phys_addr_t addr, u32 size)
&addr, size, ret); &addr, size, ret);
} }
} }
#endif
/* Setup the shared ram permissions. /* Setup the shared ram permissions.
* This function currently supports the mpss client only. * This function currently supports the mpss client only.
@ -202,6 +204,7 @@ out:
return ret; return ret;
} }
#ifdef CONFIG_MSM_GVM_QUIN
static void msm_sharedmem_shutdown(struct platform_device *pdev) static void msm_sharedmem_shutdown(struct platform_device *pdev)
{ {
struct uio_info *info = dev_get_drvdata(&pdev->dev); struct uio_info *info = dev_get_drvdata(&pdev->dev);
@ -212,6 +215,11 @@ static void msm_sharedmem_shutdown(struct platform_device *pdev)
free_shared_ram_perms(MPSS_RMTS_CLIENT_ID, shared_mem_addr, free_shared_ram_perms(MPSS_RMTS_CLIENT_ID, shared_mem_addr,
shared_mem_size); shared_mem_size);
} }
#else
static void msm_sharedmem_shutdown(struct platform_device *pdev)
{
}
#endif
static int msm_sharedmem_remove(struct platform_device *pdev) static int msm_sharedmem_remove(struct platform_device *pdev)
{ {