Set SD state to idle before unregister (reduces power) (#4272)

lbernstone · web-flow · commit 99c94bb48294 · 2020-10-01T15:31:16.000+03:00
diff --git a/libraries/SD/src/sd_diskio.cpp b/libraries/SD/src/sd_diskio.cpp
@@ -648,6 +648,7 @@ uint8_t sdcard_uninit(uint8_t pdrv)
     if (pdrv >= FF_VOLUMES || card == NULL) {
         return 1;
     }
+    sdTransaction(pdrv, GO_IDLE_STATE, 0, NULL);
     ff_diskio_register(pdrv, NULL);
     s_cards[pdrv] = NULL;
     esp_err_t err = ESP_OK;

Original file line number	Diff line number	Diff line change
`@@ -648,6 +648,7 @@ uint8_t sdcard_uninit(uint8_t pdrv)`
`648`	`648`	`if (pdrv >= FF_VOLUMES \|\| card == NULL) {`
`649`	`649`	`return 1;`
`650`	`650`	`}`
	`651`	`+ sdTransaction(pdrv, GO_IDLE_STATE, 0, NULL);`
`651`	`652`	`ff_diskio_register(pdrv, NULL);`
`652`	`653`	`s_cards[pdrv] = NULL;`
`653`	`654`	`esp_err_t err = ESP_OK;`