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authorArnd Bergmann <arnd@arndb.de>2014-09-09 11:03:17 -0400
committerArnd Bergmann <arnd@arndb.de>2014-09-09 11:03:17 -0400
commitc40c4028f048a077a8950fd95e5d8901f773a63f (patch)
tree4d1abd711def0811b3c2af8e3c89322235bb9e10 /include/linux
parent32dc5ca0c10c859e0e4fcc457e7c0a0c2c4b15ae (diff)
parentd07a1ecdfb96b26dd665b54fee22fc7417b1cb08 (diff)
Merge tag 'at91-cleanup2' of git://github.com/at91linux/linux-at91 into next/cleanup
Pull "Second batch of AT91 cleanup for 3.18" from Nicolas Ferre: - Timer Counter (TC) fixup and cleanup: - fix segmentation fault when kexec-ing a kernel by masking TC interrupts at shutdown and probe time - use modern driver model: devm_*, probe function, sanitize IRQ request Signed-off-by: Arnd Bergmann <arnd@arndb.de> * tag 'at91-cleanup2' of git://github.com/at91linux/linux-at91: clocksource: tcb_clksrc: sanitize IRQ request ARM: at91/tclib: mask interruptions at shutdown and probe ARM: at91/tclib: move initialization from alloc to probe ARM: at91/tclib: prefer using of devm_* functions
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/atmel_tc.h13
1 files changed, 10 insertions, 3 deletions
diff --git a/include/linux/atmel_tc.h b/include/linux/atmel_tc.h
index 89a931babecf..b87c1c7c242a 100644
--- a/include/linux/atmel_tc.h
+++ b/include/linux/atmel_tc.h
@@ -44,12 +44,13 @@ struct atmel_tcb_config {
44/** 44/**
45 * struct atmel_tc - information about a Timer/Counter Block 45 * struct atmel_tc - information about a Timer/Counter Block
46 * @pdev: physical device 46 * @pdev: physical device
47 * @iomem: resource associated with the I/O register
48 * @regs: mapping through which the I/O registers can be accessed 47 * @regs: mapping through which the I/O registers can be accessed
48 * @id: block id
49 * @tcb_config: configuration data from SoC 49 * @tcb_config: configuration data from SoC
50 * @irq: irq for each of the three channels 50 * @irq: irq for each of the three channels
51 * @clk: internal clock source for each of the three channels 51 * @clk: internal clock source for each of the three channels
52 * @node: list node, for tclib internal use 52 * @node: list node, for tclib internal use
53 * @allocated: if already used, for tclib internal use
53 * 54 *
54 * On some platforms, each TC channel has its own clocks and IRQs, 55 * On some platforms, each TC channel has its own clocks and IRQs,
55 * while on others, all TC channels share the same clock and IRQ. 56 * while on others, all TC channels share the same clock and IRQ.
@@ -61,15 +62,16 @@ struct atmel_tcb_config {
61 */ 62 */
62struct atmel_tc { 63struct atmel_tc {
63 struct platform_device *pdev; 64 struct platform_device *pdev;
64 struct resource *iomem;
65 void __iomem *regs; 65 void __iomem *regs;
66 int id;
66 const struct atmel_tcb_config *tcb_config; 67 const struct atmel_tcb_config *tcb_config;
67 int irq[3]; 68 int irq[3];
68 struct clk *clk[3]; 69 struct clk *clk[3];
69 struct list_head node; 70 struct list_head node;
71 bool allocated;
70}; 72};
71 73
72extern struct atmel_tc *atmel_tc_alloc(unsigned block, const char *name); 74extern struct atmel_tc *atmel_tc_alloc(unsigned block);
73extern void atmel_tc_free(struct atmel_tc *tc); 75extern void atmel_tc_free(struct atmel_tc *tc);
74 76
75/* platform-specific ATMEL_TC_TIMER_CLOCKx divisors (0 means 32KiHz) */ 77/* platform-specific ATMEL_TC_TIMER_CLOCKx divisors (0 means 32KiHz) */
@@ -258,5 +260,10 @@ extern const u8 atmel_tc_divisors[5];
258#define ATMEL_TC_LDRAS (1 << 5) /* RA loading */ 260#define ATMEL_TC_LDRAS (1 << 5) /* RA loading */
259#define ATMEL_TC_LDRBS (1 << 6) /* RB loading */ 261#define ATMEL_TC_LDRBS (1 << 6) /* RB loading */
260#define ATMEL_TC_ETRGS (1 << 7) /* external trigger */ 262#define ATMEL_TC_ETRGS (1 << 7) /* external trigger */
263#define ATMEL_TC_ALL_IRQ (ATMEL_TC_COVFS | ATMEL_TC_LOVRS | \
264 ATMEL_TC_CPAS | ATMEL_TC_CPBS | \
265 ATMEL_TC_CPCS | ATMEL_TC_LDRAS | \
266 ATMEL_TC_LDRBS | ATMEL_TC_ETRGS) \
267 /* all IRQs */
261 268
262#endif 269#endif