Merge tag 'renesas-sh-sci2-for-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into next/cleanup

From Simon Horman:
Second Round of Renesas SH SCI updates for v3.14

* Rework baud rate calculation
* Compute overrun_bit without using baud rate algo
* Remove unused GPIO request code
* Move overrun_bit and error_mask fields out of pdata
* Support resources passed through platform resources
* Don't check IRQ in verify port operation
* Set the UPF_FIXED_PORT flag
* Remove duplicate interrupt check in verify port op
* Simplify baud rate calculation algorithms
* Remove baud rate calculation algorithm 5
* Sort headers alphabetically

* tag 'renesas-sh-sci2-for-v3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
  serial: sh-sci: Rework baud rate calculation
  serial: sh-sci: Compute overrun_bit without using baud rate algo
  serial: sh-sci: Remove unused GPIO request code
  serial: sh-sci: Move overrun_bit and error_mask fields out of pdata
  serial: sh-sci: Support resources passed through platform resources
  serial: sh-sci: Don't check IRQ in verify port operation
  serial: sh-sci: Set the UPF_FIXED_PORT flag
  serial: sh-sci: Remove duplicate interrupt check in verify port op
  serial: sh-sci: Simplify baud rate calculation algorithms
  serial: sh-sci: Remove baud rate calculation algorithm 5
  serial: sh-sci: Sort headers alphabetically

Signed-off-by: Olof Johansson <olof@lixom.net>

1 files changed, 10 insertions, 24 deletions

diff --git a/include/linux/serial_sci.h b/include/linux/serial_sci.h
index 50fe651da965..af414e1895a5 100644
--- a/include/linux/serial_sci.h
+++ b/include/linux/serial_sci.h
@@ -11,11 +11,11 @@
 #define SCIx_NOT_SUPPORTED      (-1)
 
 enum {
-        SCBRR_ALGO_1,           /* ((clk + 16 * bps) / (16 * bps) - 1) */
-        SCBRR_ALGO_2,           /* ((clk + 16 * bps) / (32 * bps) - 1) */
-        SCBRR_ALGO_3,           /* (((clk * 2) + 16 * bps) / (16 * bps) - 1) */
-        SCBRR_ALGO_4,           /* (((clk * 2) + 16 * bps) / (32 * bps) - 1) */
-        SCBRR_ALGO_5,           /* (((clk * 1000 / 32) / bps) - 1) */
+        SCBRR_ALGO_NONE,        /* Compute sampling rate in the driver */
+        SCBRR_ALGO_1,           /* clk / (16 * bps) */
+        SCBRR_ALGO_2,           /* DIV_ROUND_CLOSEST(clk, 32 * bps) - 1 */
+        SCBRR_ALGO_3,           /* clk / (8 * bps) */
+        SCBRR_ALGO_4,           /* DIV_ROUND_CLOSEST(clk, 16 * bps) - 1 */
         SCBRR_ALGO_6,           /* HSCIF variable sample rate algorithm */
 };
 
@@ -70,17 +70,6 @@ enum {
         SCIx_MUX_IRQ = SCIx_NR_IRQS,    /* special case */
 };
 
-/* Offsets into the sci_port->gpios array */
-enum {
-        SCIx_SCK,
-        SCIx_RXD,
-        SCIx_TXD,
-        SCIx_CTS,
-        SCIx_RTS,
-
-        SCIx_NR_FNS,
-};
-
 enum {
         SCIx_PROBE_REGTYPE,
 
@@ -108,10 +97,10 @@ enum {
 }
 
 #define SCIx_IRQ_IS_MUXED(port)                 \
-        ((port)->cfg->irqs[SCIx_ERI_IRQ] ==     \
-         (port)->cfg->irqs[SCIx_RXI_IRQ]) ||    \
-        ((port)->cfg->irqs[SCIx_ERI_IRQ] &&     \
-         !(port)->cfg->irqs[SCIx_RXI_IRQ])
+        ((port)->irqs[SCIx_ERI_IRQ] ==  \
+         (port)->irqs[SCIx_RXI_IRQ]) || \
+        ((port)->irqs[SCIx_ERI_IRQ] &&  \
+         ((port)->irqs[SCIx_RXI_IRQ] < 0))
 /*
  * SCI register subset common for all port types.
  * Not all registers will exist on all parts.
@@ -142,20 +131,17 @@ struct plat_sci_port_ops {
 struct plat_sci_port {
         unsigned long   mapbase;                /* resource base */
         unsigned int    irqs[SCIx_NR_IRQS];     /* ERI, RXI, TXI, BRI */
-        unsigned int    gpios[SCIx_NR_FNS];     /* SCK, RXD, TXD, CTS, RTS */
         unsigned int    type;                   /* SCI / SCIF / IRDA / HSCIF */
         upf_t           flags;                  /* UPF_* flags */
         unsigned long   capabilities;           /* Port features/capabilities */
 
+        unsigned int    sampling_rate;
         unsigned int    scbrr_algo_id;          /* SCBRR calculation algo */
         unsigned int    scscr;                  /* SCSCR initialization */
 
         /*
          * Platform overrides if necessary, defaults otherwise.
          */
-        int             overrun_bit;
-        unsigned int    error_mask;
-
         int             port_reg;
         unsigned char   regshift;
         unsigned char   regtype;