143  * 4+4 bits of negative and positive gamma correction
144  * Upper nybble, bits 4-7 are negative gamma
145  * Lower nybble, bits 0-3 are positive gamma
226  * gamma correction for voltages V1 thru V8. Valid range 0..15
228  * gamma correction for voltages V1 thru V8. Valid range 0..15
246  * The negative and postive gamma values adjust the V1 thru V8 up/down
279 	u8 gamma[8];  member
393 	/* Set up gamma correction */  in ili9322_init()
394 	for (i = 0; i < ARRAY_SIZE(ili->gamma); i++) {  in ili9322_init()
396 				   ili->gamma[i]);  in ili9322_init()
399 				"can't write gamma V%d to 0x%02x (%d)\n",  in ili9322_init()
726 	u8 gamma;  in ili9322_probe()  local
809 	for (i = 0; i < ARRAY_SIZE(ili->gamma); i++) {  in ili9322_probe()
812 			dev_err(dev, "negative gamma %u > 15, capping\n", val);  in ili9322_probe()
815 		gamma = val << 4;  in ili9322_probe()
818 			dev_err(dev, "positive gamma %u > 15, capping\n", val);  in ili9322_probe()
821 		gamma |= val;  in ili9322_probe()
822 		ili->gamma[i] = gamma;  in ili9322_probe()
823 		dev_dbg(dev, "gamma V%d: 0x%02x\n", i + 1, gamma);  in ili9322_probe()