mmc: sdhci: Allow caps[1] to be set via SDHCI_QUIRK_MISSING_CAPS
Currently only the capability_0 register can be set if
SDHCI_QUIRK_MISSING_CAPS is defined. This is a problem when
the capability_1 register also needs changing. Use the quirk
SDHCI_QUIRK_MISSING_CAPS to allow both registers to be set.
Redefining caps[1] is useful when the board design does not
support 1.8v vccq so UHS modes are not available. The code that
calls sdhci_add_host can then detect this condition and adjust
the caps so the UHS mode will not be attempted on UHS cards.
Signed-off-by: Philip Rakity <prakity@marvell.com>
Signed-off-by: Chris Ball <cjb@laptop.org>
diff --git a/include/linux/mmc/sdhci.h b/include/linux/mmc/sdhci.h
index e9051e1..d989b51 100644
--- a/include/linux/mmc/sdhci.h
+++ b/include/linux/mmc/sdhci.h
@@ -155,7 +155,8 @@
struct timer_list timer; /* Timer for timeouts */
- unsigned int caps; /* Alternative capabilities */
+ unsigned int caps; /* Alternative CAPABILITY_0 */
+ unsigned int caps1; /* Alternative CAPABILITY_1 */
unsigned int ocr_avail_sdio; /* OCR bit masks */
unsigned int ocr_avail_sd;