From: H Hartley Sweeten Date: Fri, 20 Jun 2014 20:28:53 +0000 (-0700) Subject: staging: comedi: s626: remove 'set_load_trig' callback from encoder private data X-Git-Tag: firefly_0821_release~176^2~3491^2~1510 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=7f03b749990cbc3be67f6eabcd0814b89abae0f6;p=firefly-linux-kernel-4.4.55.git staging: comedi: s626: remove 'set_load_trig' callback from encoder private data There are two functions used for the 'set_load_trig' callback, One is used for the channel 0-2 encoders and the other for the channel 3-5 encoders. Refactor the two callbacks into a single s626_set_load_trig() function and use the encoder channel number to handle the differences. Remove the then unnecessary 'set_load_trig' member and just call s626_set_load_trig() drectly. Signed-off-by: H Hartley Sweeten Reviewed-by: Ian Abbott Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/staging/comedi/drivers/s626.c b/drivers/staging/comedi/drivers/s626.c index 4f93d6c19e48..49b6d5941f3e 100644 --- a/drivers/staging/comedi/drivers/s626.c +++ b/drivers/staging/comedi/drivers/s626.c @@ -122,9 +122,6 @@ struct s626_enc_info { /* Program interrupt source. */ void (*set_int_src)(struct comedi_device *dev, const struct s626_enc_info *k, uint16_t int_source); - /* Program preload trigger source. */ - void (*set_load_trig)(struct comedi_device *dev, - const struct s626_enc_info *k, uint16_t trig); /* Program standardized operating mode. */ void (*set_mode)(struct comedi_device *dev, const struct s626_enc_info *k, uint16_t setup, @@ -1109,19 +1106,23 @@ static uint16_t s626_get_latch_source(struct comedi_device *dev, * register into the counter. 0=ThisCntr_Index, 1=ThisCntr_Overflow, * 2=OverflowA (B counters only), 3=disabled. */ -static void s626_set_load_trig_a(struct comedi_device *dev, - const struct s626_enc_info *k, uint16_t trig) +static void s626_set_load_trig(struct comedi_device *dev, + const struct s626_enc_info *k, uint16_t trig) { - s626_debi_replace(dev, S626_LP_CRA(k->chan), ~S626_CRAMSK_LOADSRC_A, - S626_SET_CRA_LOADSRC_A(trig)); -} + uint16_t reg; + uint16_t mask; + uint16_t set; -static void s626_set_load_trig_b(struct comedi_device *dev, - const struct s626_enc_info *k, uint16_t trig) -{ - s626_debi_replace(dev, S626_LP_CRB(k->chan), - ~(S626_CRBMSK_LOADSRC_B | S626_CRBMSK_INTCTRL), - S626_SET_CRB_LOADSRC_B(trig)); + if (k->chan < 3) { + reg = S626_LP_CRA(k->chan); + mask = S626_CRAMSK_LOADSRC_A; + set = S626_SET_CRA_LOADSRC_A(trig); + } else { + reg = S626_LP_CRB(k->chan); + mask = S626_CRBMSK_LOADSRC_B | S626_CRBMSK_INTCTRL; + set = S626_SET_CRB_LOADSRC_B(trig); + } + s626_debi_replace(dev, reg, ~mask, set); } static uint16_t s626_get_load_trig_a(struct comedi_device *dev, @@ -1321,7 +1322,6 @@ static const struct s626_enc_info s626_enc_chan_info[] = { .get_mode = s626_get_mode_a, .pulse_index = s626_pulse_index_a, .set_int_src = s626_set_int_src_a, - .set_load_trig = s626_set_load_trig_a, .set_mode = s626_set_mode_a, .reset_cap_flags = s626_reset_cap_flags_a, .my_event_bits = S626_EVBITS(0), @@ -1332,7 +1332,6 @@ static const struct s626_enc_info s626_enc_chan_info[] = { .get_mode = s626_get_mode_a, .pulse_index = s626_pulse_index_a, .set_int_src = s626_set_int_src_a, - .set_load_trig = s626_set_load_trig_a, .set_mode = s626_set_mode_a, .reset_cap_flags = s626_reset_cap_flags_a, .my_event_bits = S626_EVBITS(1), @@ -1343,7 +1342,6 @@ static const struct s626_enc_info s626_enc_chan_info[] = { .get_mode = s626_get_mode_a, .pulse_index = s626_pulse_index_a, .set_int_src = s626_set_int_src_a, - .set_load_trig = s626_set_load_trig_a, .set_mode = s626_set_mode_a, .reset_cap_flags = s626_reset_cap_flags_a, .my_event_bits = S626_EVBITS(2), @@ -1354,7 +1352,6 @@ static const struct s626_enc_info s626_enc_chan_info[] = { .get_mode = s626_get_mode_b, .pulse_index = s626_pulse_index_b, .set_int_src = s626_set_int_src_b, - .set_load_trig = s626_set_load_trig_b, .set_mode = s626_set_mode_b, .reset_cap_flags = s626_reset_cap_flags_b, .my_event_bits = S626_EVBITS(3), @@ -1365,7 +1362,6 @@ static const struct s626_enc_info s626_enc_chan_info[] = { .get_mode = s626_get_mode_b, .pulse_index = s626_pulse_index_b, .set_int_src = s626_set_int_src_b, - .set_load_trig = s626_set_load_trig_b, .set_mode = s626_set_mode_b, .reset_cap_flags = s626_reset_cap_flags_b, .my_event_bits = S626_EVBITS(4), @@ -1376,7 +1372,6 @@ static const struct s626_enc_info s626_enc_chan_info[] = { .get_mode = s626_get_mode_b, .pulse_index = s626_pulse_index_b, .set_int_src = s626_set_int_src_b, - .set_load_trig = s626_set_load_trig_b, .set_mode = s626_set_mode_b, .reset_cap_flags = s626_reset_cap_flags_b, .my_event_bits = S626_EVBITS(5), @@ -2128,11 +2123,11 @@ static void s626_timer_load(struct comedi_device *dev, * Software index pulse forces the preload register to load * into the counter */ - k->set_load_trig(dev, k, 0); + s626_set_load_trig(dev, k, 0); k->pulse_index(dev, k); /* set reload on counter overflow */ - k->set_load_trig(dev, k, 1); + s626_set_load_trig(dev, k, 1); /* set interrupt on overflow */ k->set_int_src(dev, k, S626_INTSRC_OVER); @@ -2554,9 +2549,9 @@ static int s626_enc_insn_write(struct comedi_device *dev, * Software index pulse forces the preload register to load * into the counter */ - k->set_load_trig(dev, k, 0); + s626_set_load_trig(dev, k, 0); k->pulse_index(dev, k); - k->set_load_trig(dev, k, 2); + s626_set_load_trig(dev, k, 2); return 1; }