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drm/komeda: Add sysfs attribute: core_id and config_id

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Add two sysfs node: core_id, config_id, user can read them to fetch the
HW product information.

Also, use memset to initialize config_id, rather than quirky C syntax.
Courtesy of Nathan Chancellor <natechancellor@gmail.com>.

Signed-off-by: James Qian Wang (Arm Technology China) <james.qian.wang@arm.com>
Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>
[Merged Nathan's patch that uses memset to initialize config_id into
original patch as the fixes tag changed due to rebase, reworded the
commit to reference the merged patch]
Signed-off-by: Liviu Dudau <liviu.dudau@arm.com>
This commit is contained in:
james qian wang (Arm Technology China)
2019-01-22 11:11:53 +00:00
committed by Liviu Dudau
parent 42c729418d
commit 55223394d5
4 changed files with 71 additions and 0 deletions
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12
drivers/gpu/drm/arm/display/include/malidp_product.h
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@@ -20,4 +20,16 @@
/* Mali-display product IDs */
#define MALIDP_D71_PRODUCT_ID 0x0071
union komeda_config_id {
struct {
__u32 max_line_sz:16,
n_pipelines:2,
n_scalers:2, /* number of scalers per pipeline */
n_layers:3, /* number of layers per pipeline */
n_richs:3, /* number of rich layers per pipeline */
reserved_bits:6;
};
__u32 value;
};
#endif /* _MALIDP_PRODUCT_H_ */